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[openeuler:OLK-6.6 3536/3536] net/ipv4/tcp_comp.c:740:6: warning: no previous prototype for function 'comp_stream_read'
by kernel test robot 12 Dec '25

12 Dec '25

Hi Lu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: c31dcf6c5ab41f07da38d3f270987807735ec93e [3536/3536] tcp_comp: implement tcp compression config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20251212/202512120305.ngE1OnFo-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251212/202512120305.ngE1OnFo-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512120305.ngE1OnFo-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from net/ipv4/tcp_comp.c:8: In file included from include/linux/skmsg.h:7: In file included from include/linux/bpf.h:21: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2181: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ >> net/ipv4/tcp_comp.c:740:6: warning: no previous prototype for function 'comp_stream_read' [-Wmissing-prototypes] 740 | bool comp_stream_read(struct sock *sk) | ^ net/ipv4/tcp_comp.c:740:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 740 | bool comp_stream_read(struct sock *sk) | ^ | static >> net/ipv4/tcp_comp.c:779:6: warning: no previous prototype for function 'comp_setup_strp' [-Wmissing-prototypes] 779 | void comp_setup_strp(struct sock *sk, struct tcp_comp_context *ctx) | ^ net/ipv4/tcp_comp.c:779:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 779 | void comp_setup_strp(struct sock *sk, struct tcp_comp_context *ctx) | ^ | static 7 warnings generated. vim +/comp_stream_read +740 net/ipv4/tcp_comp.c 739 > 740 bool comp_stream_read(struct sock *sk) 741 { 742 struct tcp_comp_context *ctx = comp_get_ctx(sk); 743 744 if (!ctx) 745 return false; 746 747 if (ctx->rx.pkt || ctx->rx.dpkt) 748 return true; 749 750 return false; 751 } 752 753 static void comp_data_ready(struct sock *sk) 754 { 755 struct tcp_comp_context *ctx = comp_get_ctx(sk); 756 757 strp_data_ready(&ctx->rx.strp); 758 } 759 760 static void comp_queue(struct strparser *strp, struct sk_buff *skb) 761 { 762 struct tcp_comp_context *ctx = comp_get_ctx(strp->sk); 763 764 ctx->rx.pkt = skb; 765 strp_pause(strp); 766 ctx->rx.saved_data_ready(strp->sk); 767 } 768 769 static int comp_read_size(struct strparser *strp, struct sk_buff *skb) 770 { 771 struct strp_msg *rxm = strp_msg(skb); 772 773 if (rxm->offset > skb->len) 774 return 0; 775 776 return skb->len - rxm->offset; 777 } 778 > 779 void comp_setup_strp(struct sock *sk, struct tcp_comp_context *ctx) 780 { 781 struct strp_callbacks cb; 782 783 memset(&cb, 0, sizeof(cb)); 784 cb.rcv_msg = comp_queue; 785 cb.parse_msg = comp_read_size; 786 strp_init(&ctx->rx.strp, sk, &cb); 787 788 write_lock_bh(&sk->sk_callback_lock); 789 ctx->rx.saved_data_ready = sk->sk_data_ready; 790 sk->sk_data_ready = comp_data_ready; 791 write_unlock_bh(&sk->sk_callback_lock); 792 793 strp_check_rcv(&ctx->rx.strp); 794 } 795 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3534/3534] arch/x86/entry/common.c:163: warning: Function parameter or member 'regs' not described in 'do_int80_emulation'
by kernel test robot 12 Dec '25

12 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: 93117cefb1a33b3c93d9450d966ce333f5e4a4a8 [3534/3534] x86/bhi: Add support for clearing branch history at syscall entry config: x86_64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251211/202512111900.HRlObqRh-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111900.HRlObqRh-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111900.HRlObqRh-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/entry/common.c:163: warning: Function parameter or member 'regs' not described in 'do_int80_emulation' vim +163 arch/x86/entry/common.c ae4c9ae1882092 Thomas Gleixner 2024-01-02 142 e0df47ab7f352c Thomas Gleixner 2024-01-02 143 /** 93117cefb1a33b Pawan Gupta 2024-05-07 144 * do_int80_emulation - 32-bit legacy syscall C entry from asm e0df47ab7f352c Thomas Gleixner 2024-01-02 145 * e0df47ab7f352c Thomas Gleixner 2024-01-02 146 * This entry point can be used by 32-bit and 64-bit programs to perform e0df47ab7f352c Thomas Gleixner 2024-01-02 147 * 32-bit system calls. Instances of INT $0x80 can be found inline in e0df47ab7f352c Thomas Gleixner 2024-01-02 148 * various programs and libraries. It is also used by the vDSO's e0df47ab7f352c Thomas Gleixner 2024-01-02 149 * __kernel_vsyscall fallback for hardware that doesn't support a faster e0df47ab7f352c Thomas Gleixner 2024-01-02 150 * entry method. Restarted 32-bit system calls also fall back to INT e0df47ab7f352c Thomas Gleixner 2024-01-02 151 * $0x80 regardless of what instruction was originally used to do the e0df47ab7f352c Thomas Gleixner 2024-01-02 152 * system call. e0df47ab7f352c Thomas Gleixner 2024-01-02 153 * e0df47ab7f352c Thomas Gleixner 2024-01-02 154 * This is considered a slow path. It is not used by most libc e0df47ab7f352c Thomas Gleixner 2024-01-02 155 * implementations on modern hardware except during process startup. e0df47ab7f352c Thomas Gleixner 2024-01-02 156 * e0df47ab7f352c Thomas Gleixner 2024-01-02 157 * The arguments for the INT $0x80 based syscall are on stack in the e0df47ab7f352c Thomas Gleixner 2024-01-02 158 * pt_regs structure: e0df47ab7f352c Thomas Gleixner 2024-01-02 159 * eax: system call number e0df47ab7f352c Thomas Gleixner 2024-01-02 160 * ebx, ecx, edx, esi, edi, ebp: arg1 - arg 6 e0df47ab7f352c Thomas Gleixner 2024-01-02 161 */ 93117cefb1a33b Pawan Gupta 2024-05-07 162 __visible noinstr void do_int80_emulation(struct pt_regs *regs) e0df47ab7f352c Thomas Gleixner 2024-01-02 @163 { e0df47ab7f352c Thomas Gleixner 2024-01-02 164 int nr; e0df47ab7f352c Thomas Gleixner 2024-01-02 165 ae4c9ae1882092 Thomas Gleixner 2024-01-02 166 /* Kernel does not use INT $0x80! */ ae4c9ae1882092 Thomas Gleixner 2024-01-02 167 if (unlikely(!user_mode(regs))) { ae4c9ae1882092 Thomas Gleixner 2024-01-02 168 irqentry_enter(regs); ae4c9ae1882092 Thomas Gleixner 2024-01-02 169 instrumentation_begin(); ae4c9ae1882092 Thomas Gleixner 2024-01-02 170 panic("Unexpected external interrupt 0x80\n"); ae4c9ae1882092 Thomas Gleixner 2024-01-02 171 } ae4c9ae1882092 Thomas Gleixner 2024-01-02 172 ae4c9ae1882092 Thomas Gleixner 2024-01-02 173 /* ae4c9ae1882092 Thomas Gleixner 2024-01-02 174 * Establish kernel context for instrumentation, including for ae4c9ae1882092 Thomas Gleixner 2024-01-02 175 * int80_is_external() below which calls into the APIC driver. ae4c9ae1882092 Thomas Gleixner 2024-01-02 176 * Identical for soft and external interrupts. ae4c9ae1882092 Thomas Gleixner 2024-01-02 177 */ e0df47ab7f352c Thomas Gleixner 2024-01-02 178 enter_from_user_mode(regs); e0df47ab7f352c Thomas Gleixner 2024-01-02 179 e0df47ab7f352c Thomas Gleixner 2024-01-02 180 instrumentation_begin(); e0df47ab7f352c Thomas Gleixner 2024-01-02 181 add_random_kstack_offset(); e0df47ab7f352c Thomas Gleixner 2024-01-02 182 ae4c9ae1882092 Thomas Gleixner 2024-01-02 183 /* Validate that this is a soft interrupt to the extent possible */ ae4c9ae1882092 Thomas Gleixner 2024-01-02 184 if (unlikely(int80_is_external())) ae4c9ae1882092 Thomas Gleixner 2024-01-02 185 panic("Unexpected external interrupt 0x80\n"); ae4c9ae1882092 Thomas Gleixner 2024-01-02 186 e0df47ab7f352c Thomas Gleixner 2024-01-02 187 /* e0df47ab7f352c Thomas Gleixner 2024-01-02 188 * The low level idtentry code pushed -1 into regs::orig_ax e0df47ab7f352c Thomas Gleixner 2024-01-02 189 * and regs::ax contains the syscall number. e0df47ab7f352c Thomas Gleixner 2024-01-02 190 * e0df47ab7f352c Thomas Gleixner 2024-01-02 191 * User tracing code (ptrace or signal handlers) might assume e0df47ab7f352c Thomas Gleixner 2024-01-02 192 * that the regs::orig_ax contains a 32-bit number on invoking e0df47ab7f352c Thomas Gleixner 2024-01-02 193 * a 32-bit syscall. e0df47ab7f352c Thomas Gleixner 2024-01-02 194 * e0df47ab7f352c Thomas Gleixner 2024-01-02 195 * Establish the syscall convention by saving the 32bit truncated e0df47ab7f352c Thomas Gleixner 2024-01-02 196 * syscall number in regs::orig_ax and by invalidating regs::ax. e0df47ab7f352c Thomas Gleixner 2024-01-02 197 */ e0df47ab7f352c Thomas Gleixner 2024-01-02 198 regs->orig_ax = regs->ax & GENMASK(31, 0); e0df47ab7f352c Thomas Gleixner 2024-01-02 199 regs->ax = -ENOSYS; e0df47ab7f352c Thomas Gleixner 2024-01-02 200 e0df47ab7f352c Thomas Gleixner 2024-01-02 201 nr = syscall_32_enter(regs); e0df47ab7f352c Thomas Gleixner 2024-01-02 202 e0df47ab7f352c Thomas Gleixner 2024-01-02 203 local_irq_enable(); e0df47ab7f352c Thomas Gleixner 2024-01-02 204 nr = syscall_enter_from_user_mode_work(regs, nr); e0df47ab7f352c Thomas Gleixner 2024-01-02 205 do_syscall_32_irqs_on(regs, nr); e0df47ab7f352c Thomas Gleixner 2024-01-02 206 e0df47ab7f352c Thomas Gleixner 2024-01-02 207 instrumentation_end(); e0df47ab7f352c Thomas Gleixner 2024-01-02 208 syscall_exit_to_user_mode(regs); e0df47ab7f352c Thomas Gleixner 2024-01-02 209 } e0df47ab7f352c Thomas Gleixner 2024-01-02 210 #else /* CONFIG_IA32_EMULATION */ e0df47ab7f352c Thomas Gleixner 2024-01-02 211 :::::: The code at line 163 was first introduced by commit :::::: e0df47ab7f352c5f055d05102cc1dfcb43567ba8 x86/entry: Convert INT 0x80 emulation to IDTENTRY :::::: TO: Thomas Gleixner <tglx(a)linutronix.de> :::::: CC: Zheng Zengkai <zhengzengkai(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3508/3508] drivers/acpi/pptt.c:411: warning: Function parameter or member 'acpi_cpu_id' not described in 'acpi_pptt_get_cpus_from_container'
by kernel test robot 12 Dec '25

12 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: 45f065231c8fbabe4e1b4449425a0574287e2bbb [3508/3508] ACPI / PPTT: Add a helper to fill a cpumask from a processor container config: arm64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251211/202512111902.thfID0yT-lkp@…) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 4125e73cdc6188cca4c1c72b72e2b2d85c157483) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111902.thfID0yT-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111902.thfID0yT-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/acpi/pptt.c:342: warning: Function parameter or member 'callback' not described in 'acpi_pptt_for_each_container' drivers/acpi/pptt.c:342: warning: Function parameter or member 'arg' not described in 'acpi_pptt_for_each_container' >> drivers/acpi/pptt.c:411: warning: Function parameter or member 'acpi_cpu_id' not described in 'acpi_pptt_get_cpus_from_container' >> drivers/acpi/pptt.c:411: warning: Function parameter or member 'cpus' not described in 'acpi_pptt_get_cpus_from_container' vim +411 drivers/acpi/pptt.c 400 401 /** 402 * acpi_pptt_get_cpus_from_container() - Populate a cpumask with all CPUs in a 403 * processor containers 404 * 405 * Find the specified Processor Container, and fill cpus with all the cpus 406 * below it. 407 * 408 * Return: 0 for a complete walk, or an error if the mask is incomplete. 409 */ 410 int acpi_pptt_get_cpus_from_container(u32 acpi_cpu_id, cpumask_t *cpus) > 411 { 412 struct __cpus_from_container_arg params; 413 414 params.acpi_cpu_id = acpi_cpu_id; 415 params.cpus = cpus; 416 417 cpumask_clear(cpus); 418 return acpi_pptt_for_each_container(&__cpus_from_container, &params); 419 } 420 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3508/3508] htmldocs: ./include/drm/drm_fb_helper.h:107: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_fb_helper_funcs'
by kernel test robot 12 Dec '25

12 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: 544aacc8da43991ecec944d135d89335642d7b3c [3508/3508] drm: drm_fb_helper.h: Add kabi_reserve reproduce: (https://download.01.org/0day-ci/archive/20251211/202512111820.FOuZzKT5-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111820.FOuZzKT5-lkp@intel.com/ All warnings (new ones prefixed by >>): ./include/drm/drm_connector.h:826: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_display_info' ./include/drm/drm_connector.h:888: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_tv_connector_state' ./include/drm/drm_connector.h:1350: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_connector_funcs' ./include/drm/drm_connector.h:1499: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_cmdline_mode' ./include/drm/drm_connector.h:1897: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_connector' >> ./include/drm/drm_fb_helper.h:107: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_fb_helper_funcs' >> ./include/drm/drm_fb_helper.h:217: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_fb_helper' Error: Cannot open file ./include/linux/hdmi.h Error: Cannot open file ./include/linux/hdmi.h Error: Cannot open file ./include/linux/host1x.h Error: Cannot open file ./include/linux/vga_switcheroo.h Error: Cannot open file ./include/linux/vga_switcheroo.h vim +107 ./include/drm/drm_fb_helper.h 386516744ba45d Dave Airlie 2010-03-30 67 207fd32970b1de Daniel Vetter 2013-01-20 68 /** 207fd32970b1de Daniel Vetter 2013-01-20 69 * struct drm_fb_helper_funcs - driver callbacks for the fbdev emulation library 207fd32970b1de Daniel Vetter 2013-01-20 70 * 207fd32970b1de Daniel Vetter 2013-01-20 71 * Driver callbacks used by the fbdev emulation helper library. 207fd32970b1de Daniel Vetter 2013-01-20 72 */ 4abe35204af82a Dave Airlie 2010-03-30 73 struct drm_fb_helper_funcs { 264d6970e16c68 Daniel Vetter 2015-12-04 74 /** 264d6970e16c68 Daniel Vetter 2015-12-04 75 * @fb_probe: 264d6970e16c68 Daniel Vetter 2015-12-04 76 * 264d6970e16c68 Daniel Vetter 2015-12-04 77 * Driver callback to allocate and initialize the fbdev info structure. 264d6970e16c68 Daniel Vetter 2015-12-04 78 * Furthermore it also needs to allocate the DRM framebuffer used to 264d6970e16c68 Daniel Vetter 2015-12-04 79 * back the fbdev. 264d6970e16c68 Daniel Vetter 2015-12-04 80 * 264d6970e16c68 Daniel Vetter 2015-12-04 81 * This callback is mandatory. 264d6970e16c68 Daniel Vetter 2015-12-04 82 * 264d6970e16c68 Daniel Vetter 2015-12-04 83 * RETURNS: 264d6970e16c68 Daniel Vetter 2015-12-04 84 * 264d6970e16c68 Daniel Vetter 2015-12-04 85 * The driver should return 0 on success and a negative error code on 264d6970e16c68 Daniel Vetter 2015-12-04 86 * failure. 264d6970e16c68 Daniel Vetter 2015-12-04 87 */ 4abe35204af82a Dave Airlie 2010-03-30 88 int (*fb_probe)(struct drm_fb_helper *helper, 4abe35204af82a Dave Airlie 2010-03-30 89 struct drm_fb_helper_surface_size *sizes); f231af498c29f3 Thomas Zimmermann 2022-11-03 90 f231af498c29f3 Thomas Zimmermann 2022-11-03 91 /** f231af498c29f3 Thomas Zimmermann 2022-11-03 92 * @fb_dirty: f231af498c29f3 Thomas Zimmermann 2022-11-03 93 * f231af498c29f3 Thomas Zimmermann 2022-11-03 94 * Driver callback to update the framebuffer memory. If set, fbdev f231af498c29f3 Thomas Zimmermann 2022-11-03 95 * emulation will invoke this callback in regular intervals after f231af498c29f3 Thomas Zimmermann 2022-11-03 96 * the framebuffer has been written. f231af498c29f3 Thomas Zimmermann 2022-11-03 97 * f231af498c29f3 Thomas Zimmermann 2022-11-03 98 * This callback is optional. f231af498c29f3 Thomas Zimmermann 2022-11-03 99 * f231af498c29f3 Thomas Zimmermann 2022-11-03 100 * Returns: f231af498c29f3 Thomas Zimmermann 2022-11-03 101 * 0 on success, or an error code otherwise. f231af498c29f3 Thomas Zimmermann 2022-11-03 102 */ f231af498c29f3 Thomas Zimmermann 2022-11-03 103 int (*fb_dirty)(struct drm_fb_helper *helper, struct drm_clip_rect *clip); 544aacc8da4399 Lin Yujun 2024-02-04 104 544aacc8da4399 Lin Yujun 2024-02-04 105 KABI_RESERVE(1) 544aacc8da4399 Lin Yujun 2024-02-04 106 KABI_RESERVE(2) 4abe35204af82a Dave Airlie 2010-03-30 @107 }; 4abe35204af82a Dave Airlie 2010-03-30 108 9685cd9df75c1f Rob Clark 2015-08-25 109 /** 264d6970e16c68 Daniel Vetter 2015-12-04 110 * struct drm_fb_helper - main structure to emulate fbdev on top of KMS 9685cd9df75c1f Rob Clark 2015-08-25 111 * @fb: Scanout framebuffer object 9685cd9df75c1f Rob Clark 2015-08-25 112 * @dev: DRM device 9685cd9df75c1f Rob Clark 2015-08-25 113 * @funcs: driver callbacks for fb helper 9877d8f6bc3749 Thomas Zimmermann 2022-11-03 114 * @info: emulated fbdev device info struct 9685cd9df75c1f Rob Clark 2015-08-25 115 * @pseudo_palette: fake palette of 16 colors 9622349ea1b623 Thomas Zimmermann 2020-11-20 116 * @damage_clip: clip rectangle used with deferred_io to accumulate damage to eaa434defaca17 Noralf Trønnes 2016-04-28 117 * the screen buffer 9622349ea1b623 Thomas Zimmermann 2020-11-20 118 * @damage_lock: spinlock protecting @damage_clip 7aa3d63e1ad56c Thomas Zimmermann 2022-11-18 119 * @damage_work: worker used to flush the framebuffer cfe63423d9be3e Noralf Trønnes 2016-08-23 120 * @resume_work: worker used during resume if the console lock is already taken 264d6970e16c68 Daniel Vetter 2015-12-04 121 * 264d6970e16c68 Daniel Vetter 2015-12-04 122 * This is the main structure used by the fbdev helpers. Drivers supporting 264d6970e16c68 Daniel Vetter 2015-12-04 123 * fbdev emulation should embedded this into their overall driver structure. ea0dd85a75f151 Daniel Vetter 2016-12-29 124 * Drivers must also fill out a &struct drm_fb_helper_funcs with a few 264d6970e16c68 Daniel Vetter 2015-12-04 125 * operations. 9685cd9df75c1f Rob Clark 2015-08-25 126 */ 785b93ef8c3097 Dave Airlie 2009-08-28 127 struct drm_fb_helper { d536540f304ce0 Noralf Trønnes 2018-07-03 128 /** d536540f304ce0 Noralf Trønnes 2018-07-03 129 * @client: d536540f304ce0 Noralf Trønnes 2018-07-03 130 * d536540f304ce0 Noralf Trønnes 2018-07-03 131 * DRM client used by the generic fbdev emulation. d536540f304ce0 Noralf Trønnes 2018-07-03 132 */ d536540f304ce0 Noralf Trønnes 2018-07-03 133 struct drm_client_dev client; d536540f304ce0 Noralf Trønnes 2018-07-03 134 d536540f304ce0 Noralf Trønnes 2018-07-03 135 /** d536540f304ce0 Noralf Trønnes 2018-07-03 136 * @buffer: d536540f304ce0 Noralf Trønnes 2018-07-03 137 * d536540f304ce0 Noralf Trønnes 2018-07-03 138 * Framebuffer used by the generic fbdev emulation. d536540f304ce0 Noralf Trønnes 2018-07-03 139 */ d536540f304ce0 Noralf Trønnes 2018-07-03 140 struct drm_client_buffer *buffer; d536540f304ce0 Noralf Trønnes 2018-07-03 141 785b93ef8c3097 Dave Airlie 2009-08-28 142 struct drm_framebuffer *fb; 785b93ef8c3097 Dave Airlie 2009-08-28 143 struct drm_device *dev; 3a4938799dec32 Thierry Reding 2014-06-27 144 const struct drm_fb_helper_funcs *funcs; 9877d8f6bc3749 Thomas Zimmermann 2022-11-03 145 struct fb_info *info; 386516744ba45d Dave Airlie 2010-03-30 146 u32 pseudo_palette[17]; 9622349ea1b623 Thomas Zimmermann 2020-11-20 147 struct drm_clip_rect damage_clip; 9622349ea1b623 Thomas Zimmermann 2020-11-20 148 spinlock_t damage_lock; 7aa3d63e1ad56c Thomas Zimmermann 2022-11-18 149 struct work_struct damage_work; cfe63423d9be3e Noralf Trønnes 2016-08-23 150 struct work_struct resume_work; 264d6970e16c68 Daniel Vetter 2015-12-04 151 e9827d8ea2142d Thierry Reding 2017-07-04 152 /** e9827d8ea2142d Thierry Reding 2017-07-04 153 * @lock: e9827d8ea2142d Thierry Reding 2017-07-04 154 * e9827d8ea2142d Thierry Reding 2017-07-04 155 * Top-level FBDEV helper lock. This protects all internal data e9827d8ea2142d Thierry Reding 2017-07-04 156 * structures and lists, such as @connector_info and @crtc_info. e9827d8ea2142d Thierry Reding 2017-07-04 157 * e9827d8ea2142d Thierry Reding 2017-07-04 158 * FIXME: fbdev emulation locking is a mess and long term we want to e9827d8ea2142d Thierry Reding 2017-07-04 159 * protect all helper internal state with this lock as well as reduce e9827d8ea2142d Thierry Reding 2017-07-04 160 * core KMS locking as much as possible. e9827d8ea2142d Thierry Reding 2017-07-04 161 */ e9827d8ea2142d Thierry Reding 2017-07-04 162 struct mutex lock; e9827d8ea2142d Thierry Reding 2017-07-04 163 264d6970e16c68 Daniel Vetter 2015-12-04 164 /** 264d6970e16c68 Daniel Vetter 2015-12-04 165 * @kernel_fb_list: 264d6970e16c68 Daniel Vetter 2015-12-04 166 * 264d6970e16c68 Daniel Vetter 2015-12-04 167 * Entry on the global kernel_fb_helper_list, used for kgdb entry/exit. 264d6970e16c68 Daniel Vetter 2015-12-04 168 */ 785b93ef8c3097 Dave Airlie 2009-08-28 169 struct list_head kernel_fb_list; 8be48d924c307e Dave Airlie 2010-03-30 170 264d6970e16c68 Daniel Vetter 2015-12-04 171 /** 264d6970e16c68 Daniel Vetter 2015-12-04 172 * @delayed_hotplug: 264d6970e16c68 Daniel Vetter 2015-12-04 173 * 264d6970e16c68 Daniel Vetter 2015-12-04 174 * A hotplug was received while fbdev wasn't in control of the DRM 264d6970e16c68 Daniel Vetter 2015-12-04 175 * device, i.e. another KMS master was active. The output configuration 264d6970e16c68 Daniel Vetter 2015-12-04 176 * needs to be reprobe when fbdev is in control again. 264d6970e16c68 Daniel Vetter 2015-12-04 177 */ 4abe35204af82a Dave Airlie 2010-03-30 178 bool delayed_hotplug; ca91a2758fcef6 Daniel Vetter 2017-07-06 179 ca91a2758fcef6 Daniel Vetter 2017-07-06 180 /** ca91a2758fcef6 Daniel Vetter 2017-07-06 181 * @deferred_setup: ca91a2758fcef6 Daniel Vetter 2017-07-06 182 * ca91a2758fcef6 Daniel Vetter 2017-07-06 183 * If no outputs are connected (disconnected or unknown) the FB helper ca91a2758fcef6 Daniel Vetter 2017-07-06 184 * code will defer setup until at least one of the outputs shows up. ca91a2758fcef6 Daniel Vetter 2017-07-06 185 * This field keeps track of the status so that setup can be retried ca91a2758fcef6 Daniel Vetter 2017-07-06 186 * at every hotplug event until it succeeds eventually. ca91a2758fcef6 Daniel Vetter 2017-07-06 187 * ca91a2758fcef6 Daniel Vetter 2017-07-06 188 * Protected by @lock. ca91a2758fcef6 Daniel Vetter 2017-07-06 189 */ ca91a2758fcef6 Daniel Vetter 2017-07-06 190 bool deferred_setup; ca91a2758fcef6 Daniel Vetter 2017-07-06 191 ca91a2758fcef6 Daniel Vetter 2017-07-06 192 /** ca91a2758fcef6 Daniel Vetter 2017-07-06 193 * @preferred_bpp: ca91a2758fcef6 Daniel Vetter 2017-07-06 194 * ca91a2758fcef6 Daniel Vetter 2017-07-06 195 * Temporary storage for the driver's preferred BPP setting passed to ca91a2758fcef6 Daniel Vetter 2017-07-06 196 * FB helper initialization. This needs to be tracked so that deferred ca91a2758fcef6 Daniel Vetter 2017-07-06 197 * FB helper setup can pass this on. ca91a2758fcef6 Daniel Vetter 2017-07-06 198 * ca91a2758fcef6 Daniel Vetter 2017-07-06 199 * See also: @deferred_setup ca91a2758fcef6 Daniel Vetter 2017-07-06 200 */ ca91a2758fcef6 Daniel Vetter 2017-07-06 201 int preferred_bpp; e7c5c29a9eb1c9 Thomas Zimmermann 2022-11-03 202 d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 203 #ifdef CONFIG_FB_DEFERRED_IO d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 204 /** d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 205 * @fbdefio: d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 206 * d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 207 * Temporary storage for the driver's FB deferred I/O handler. If the d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 208 * driver uses the DRM fbdev emulation layer, this is set by the core d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 209 * to a generic deferred I/O handler if a driver is preferring to use d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 210 * a shadow buffer. d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 211 */ d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 212 struct fb_deferred_io fbdefio; d6591da5f3ff28 Javier Martinez Canillas 2023-01-21 213 #endif 544aacc8da4399 Lin Yujun 2024-02-04 214 544aacc8da4399 Lin Yujun 2024-02-04 215 KABI_RESERVE(1) 544aacc8da4399 Lin Yujun 2024-02-04 216 KABI_RESERVE(2) 785b93ef8c3097 Dave Airlie 2009-08-28 @217 }; 785b93ef8c3097 Dave Airlie 2009-08-28 218 :::::: The code at line 107 was first introduced by commit :::::: 4abe35204af82a018ca3ce6db4102aa09719698e drm/kms/fb: use slow work mechanism for normal hotplug also. :::::: TO: Dave Airlie <airlied(a)redhat.com> :::::: CC: Dave Airlie <airlied(a)redhat.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3534/3534] kernel/irq/proc.c:334:13: warning: no previous prototype for function 'register_irqchip_proc'
by kernel test robot 12 Dec '25

12 Dec '25

Hi Jinjie, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: 3053668e6b211924bb67c19d791a5a532eca2ad8 [3534/3534] arm64: Introduce Xint software solution config: arm64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251211/202512111720.WtJhXDC4-lkp@…) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 4125e73cdc6188cca4c1c72b72e2b2d85c157483) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111720.WtJhXDC4-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111720.WtJhXDC4-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from <built-in>:3: In file included from ././include/linux/compiler_types.h:150: ./include/linux/compiler-clang.h:33:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined] 33 | #define __SANITIZE_ADDRESS__ | ^ <built-in>:367:9: note: previous definition is here 367 | #define __SANITIZE_ADDRESS__ 1 | ^ >> kernel/irq/proc.c:334:13: warning: no previous prototype for function 'register_irqchip_proc' [-Wmissing-prototypes] 334 | void __weak register_irqchip_proc(struct irq_desc *desc, void *irqp) { } | ^ kernel/irq/proc.c:334:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 334 | void __weak register_irqchip_proc(struct irq_desc *desc, void *irqp) { } | ^ | static >> kernel/irq/proc.c:335:13: warning: no previous prototype for function 'unregister_irqchip_proc' [-Wmissing-prototypes] 335 | void __weak unregister_irqchip_proc(struct irq_desc *desc) { } | ^ kernel/irq/proc.c:335:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 335 | void __weak unregister_irqchip_proc(struct irq_desc *desc) { } | ^ | static 3 warnings generated. vim +/register_irqchip_proc +334 kernel/irq/proc.c 333 > 334 void __weak register_irqchip_proc(struct irq_desc *desc, void *irqp) { } > 335 void __weak unregister_irqchip_proc(struct irq_desc *desc) { } 336 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3534/3534] htmldocs: ./kernel/livepatch/core.c:2046: warning: bad line:
by kernel test robot 12 Dec '25

12 Dec '25

Hi Zheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: 29f85d3cff2dfa35ace94d3e4036d5ea456eb859 [3534/3534] livepatch: Add klp_module_delete_safety_check reproduce: (https://download.01.org/0day-ci/archive/20251211/202512111739.Q8ijhkEi-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111739.Q8ijhkEi-lkp@intel.com/ All warnings (new ones prefixed by >>): Error: Cannot open file ./include/linux/hid_bpf.h Error: Cannot open file ./include/linux/hid.h Error: Cannot open file ./include/linux/i2c-atr.h Error: Cannot open file ./include/linux/mutex.h Error: Cannot open file ./include/linux/mutex.h >> ./kernel/livepatch/core.c:2046: warning: bad line: Error: Cannot open file ./include/linux/livepatch.h Error: Cannot open file ./include/linux/seqlock.h Error: Cannot open file ./include/linux/damon.h Error: Cannot open file ./include/linux/highmem.h Error: Cannot open file ./include/linux/highmem-internal.h vim +2046 ./kernel/livepatch/core.c 2033 2034 /** 2035 * klp_module_delete_safety_check() - safety check in livepatch scenario when delete a module 2036 * @mod: Module to be deleted 2037 * 2038 * Module refcnt ensures that there is no rare case between enable_patch and delete_module: 2039 * 1. safety_check -> try_enable_patch -> try_release_module_ref: 2040 * try_enable_patch would increase module refcnt, which cause try_release_module_ref fails. 2041 * 2. safety_check -> try_release_module_ref -> try_enable_patch: 2042 * after release module ref, try_enable_patch would fail because try_module_get fails. 2043 * So the problem that release resources unsafely when enable livepatch after safety_check is 2044 * passed during module deletion does not exist, complex synchronization protection is not 2045 * required. > 2046 2047 * Return: 0 on success, otherwise error 2048 */ 2049 int klp_module_delete_safety_check(struct module *mod) 2050 { 2051 int ret; 2052 2053 if (!mod || !is_livepatch_module(mod)) 2054 return 0; 2055 2056 ret = stop_machine(arch_klp_module_check_calltrace, (void *)mod, NULL); 2057 if (ret) { 2058 pr_debug("failed to check klp module calltrace: %d\n", ret); 2059 return ret; 2060 } 2061 2062 return 0; 2063 } 2064 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3536/3536] kernel/livepatch/core.c:2046: warning: bad line:
by kernel test robot 12 Dec '25

12 Dec '25

Hi Zheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: 29f85d3cff2dfa35ace94d3e4036d5ea456eb859 [3536/3536] livepatch: Add klp_module_delete_safety_check config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20251212/202512120043.Ja8LDkyR-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251212/202512120043.Ja8LDkyR-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512120043.Ja8LDkyR-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/livepatch/core.c:2046: warning: bad line: vim +2046 kernel/livepatch/core.c 2033 2034 /** 2035 * klp_module_delete_safety_check() - safety check in livepatch scenario when delete a module 2036 * @mod: Module to be deleted 2037 * 2038 * Module refcnt ensures that there is no rare case between enable_patch and delete_module: 2039 * 1. safety_check -> try_enable_patch -> try_release_module_ref: 2040 * try_enable_patch would increase module refcnt, which cause try_release_module_ref fails. 2041 * 2. safety_check -> try_release_module_ref -> try_enable_patch: 2042 * after release module ref, try_enable_patch would fail because try_module_get fails. 2043 * So the problem that release resources unsafely when enable livepatch after safety_check is 2044 * passed during module deletion does not exist, complex synchronization protection is not 2045 * required. > 2046 2047 * Return: 0 on success, otherwise error 2048 */ 2049 int klp_module_delete_safety_check(struct module *mod) 2050 { 2051 int ret; 2052 2053 if (!mod || !is_livepatch_module(mod)) 2054 return 0; 2055 2056 ret = stop_machine(arch_klp_module_check_calltrace, (void *)mod, NULL); 2057 if (ret) { 2058 pr_debug("failed to check klp module calltrace: %d\n", ret); 2059 return ret; 2060 } 2061 2062 return 0; 2063 } 2064 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3508/3508] drivers/acpi/pptt.c:309:5: warning: no previous prototype for function 'acpi_pptt_for_each_container'
by kernel test robot 11 Dec '25

11 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: 1ab6383ee94e788fe424d7eac10dc8ec3bfa6828 [3508/3508] ACPI / PPTT: Provide a helper to walk processor containers config: arm64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251211/202512111416.5evNsB79-lkp@…) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 4125e73cdc6188cca4c1c72b72e2b2d85c157483) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111416.5evNsB79-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111416.5evNsB79-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from <built-in>:3: In file included from ././include/linux/compiler_types.h:150: ./include/linux/compiler-clang.h:33:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined] 33 | #define __SANITIZE_ADDRESS__ | ^ <built-in>:367:9: note: previous definition is here 367 | #define __SANITIZE_ADDRESS__ 1 | ^ In file included from drivers/acpi/pptt.c:20: In file included from ./include/linux/acpi.h:37: In file included from ./include/acpi/acpi_io.h:7: In file included from ./arch/arm64/include/asm/acpi.h:14: In file included from ./include/linux/memblock.h:12: In file included from ./include/linux/mm.h:2181: ./include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ ./include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ ./include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ ./include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ ./include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ >> drivers/acpi/pptt.c:309:5: warning: no previous prototype for function 'acpi_pptt_for_each_container' [-Wmissing-prototypes] 309 | int acpi_pptt_for_each_container(acpi_pptt_cpu_callback_t callback, void *arg) | ^ drivers/acpi/pptt.c:309:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 309 | int acpi_pptt_for_each_container(acpi_pptt_cpu_callback_t callback, void *arg) | ^ | static 7 warnings generated. -- >> drivers/acpi/pptt.c:310: warning: Function parameter or member 'callback' not described in 'acpi_pptt_for_each_container' >> drivers/acpi/pptt.c:310: warning: Function parameter or member 'arg' not described in 'acpi_pptt_for_each_container' vim +/acpi_pptt_for_each_container +309 drivers/acpi/pptt.c 297 298 /** 299 * acpi_pptt_for_each_container() - Iterate over all processor containers 300 * 301 * Not all 'Processor' entries in the PPTT are either a CPU or a Processor 302 * Container, they may exist purely to describe a Private resource. CPUs 303 * have to be leaves, so a Processor Container is a non-leaf that has the 304 * 'ACPI Processor ID valid' flag set. 305 * 306 * Return: 0 for a complete walk, or the first non-zero value from the callback 307 * that stopped the walk. 308 */ > 309 int acpi_pptt_for_each_container(acpi_pptt_cpu_callback_t callback, void *arg) > 310 { 311 struct acpi_pptt_processor *cpu_node; 312 struct acpi_table_header *table_hdr; 313 struct acpi_subtable_header *entry; 314 bool leaf_flag, has_leaf_flag = false; 315 unsigned long table_end; 316 acpi_status status; 317 u32 proc_sz; 318 int ret = 0; 319 320 status = acpi_get_table(ACPI_SIG_PPTT, 0, &table_hdr); 321 if (ACPI_FAILURE(status)) 322 return 0; 323 324 if (table_hdr->revision > 1) 325 has_leaf_flag = true; 326 327 table_end = (unsigned long)table_hdr + table_hdr->length; 328 entry = ACPI_ADD_PTR(struct acpi_subtable_header, table_hdr, 329 sizeof(struct acpi_table_pptt)); 330 proc_sz = sizeof(struct acpi_pptt_processor); 331 while ((unsigned long)entry + proc_sz < table_end) { 332 cpu_node = (struct acpi_pptt_processor *)entry; 333 if (entry->type == ACPI_PPTT_TYPE_PROCESSOR && 334 cpu_node->flags & ACPI_PPTT_ACPI_PROCESSOR_ID_VALID) 335 { 336 leaf_flag = cpu_node->flags & ACPI_PPTT_ACPI_LEAF_NODE; 337 if ((has_leaf_flag && !leaf_flag) || 338 (!has_leaf_flag && !acpi_pptt_leaf_node(table_hdr, cpu_node))) 339 { 340 ret = callback(cpu_node, arg); 341 if (ret) 342 break; 343 } 344 } 345 entry = ACPI_ADD_PTR(struct acpi_subtable_header, entry, 346 entry->length); 347 } 348 349 acpi_put_table(table_hdr); 350 351 return ret; 352 } 353 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-26.09] just use test patch2pr
by Coopermassaki 11 Dec '25

11 Dec '25

--- README | 1 + 1 file changed, 1 insertion(+) diff --git a/README b/README index 669ac7c32292..e27b37bdb455 100644 --- a/README +++ b/README @@ -16,3 +16,4 @@ several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel. +JUST TEST -- 2.34.1

2 1

[openeuler:OLK-6.6 3508/3508] htmldocs: ./include/drm/drm_crtc.h:392: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_crtc_state'
by kernel test robot 11 Dec '25

11 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: c838ee8e68deff494edbc699764a07ba937a80b9 [3508/3508] drm: drm_crtc.h: Add kabi_reserve reproduce: (https://download.01.org/0day-ci/archive/20251211/202512111432.s5VdCSnc-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111432.s5VdCSnc-lkp@intel.com/ All warnings (new ones prefixed by >>): Error: Cannot open file ./include/linux/backlight.h ./include/drm/drm_client.h:121: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_client_dev' ./include/drm/drm_client.h:163: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_client_buffer' ./include/drm/drm_atomic.h:246: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_private_state_funcs' ./include/drm/drm_atomic.h:347: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_private_state' >> ./include/drm/drm_crtc.h:392: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_crtc_state' >> ./include/drm/drm_crtc.h:1185: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_crtc' ./include/drm/drm_connector.h:328: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_hdmi_info' ./include/drm/drm_connector.h:531: warning: Enum value 'DRM_MODE_COLORIMETRY_COUNT' not described in enum 'drm_colorspace' ./include/drm/drm_connector.h:826: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_display_info' ./include/drm/drm_connector.h:888: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_tv_connector_state' ./include/drm/drm_connector.h:1350: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_connector_funcs' vim +392 ./include/drm/drm_crtc.h 4490d4c7111e1e Daniel Vetter 2015-12-04 66 144ecb97cd57d2 Daniel Vetter 2014-10-27 67 /** cc4ceb484b37b9 Daniel Vetter 2014-07-25 68 * struct drm_crtc_state - mutable CRTC state d9b13620fa09d2 Daniel Vetter 2014-11-26 69 * bb10211058880b Kieran Bingham 2019-03-14 70 * Note that the distinction between @enable and @active is rather subtle: d9b13620fa09d2 Daniel Vetter 2014-11-26 71 * Flipping @active while @enable is set without changing anything else may d574528a64c3a3 Daniel Vetter 2017-01-25 72 * never return in a failure from the &drm_mode_config_funcs.atomic_check d574528a64c3a3 Daniel Vetter 2017-01-25 73 * callback. Userspace assumes that a DPMS On will always succeed. In other d574528a64c3a3 Daniel Vetter 2017-01-25 74 * words: @enable controls resource assignment, @active controls the actual d574528a64c3a3 Daniel Vetter 2017-01-25 75 * hardware state. d807ed1c55fb1b Brian Starkey 2016-10-13 76 * d807ed1c55fb1b Brian Starkey 2016-10-13 77 * The three booleans active_changed, connectors_changed and mode_changed are d807ed1c55fb1b Brian Starkey 2016-10-13 78 * intended to indicate whether a full modeset is needed, rather than strictly 620eec75f35ce4 Daniel Vetter 2018-07-09 79 * describing what has changed in a commit. See also: 620eec75f35ce4 Daniel Vetter 2018-07-09 80 * drm_atomic_crtc_needs_modeset() 144ecb97cd57d2 Daniel Vetter 2014-10-27 81 */ 144ecb97cd57d2 Daniel Vetter 2014-10-27 82 struct drm_crtc_state { 620eec75f35ce4 Daniel Vetter 2018-07-09 83 /** @crtc: backpointer to the CRTC */ 07cc0ef67fa873 Daniel Vetter 2014-11-27 84 struct drm_crtc *crtc; 07cc0ef67fa873 Daniel Vetter 2014-11-27 85 620eec75f35ce4 Daniel Vetter 2018-07-09 86 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 87 * @enable: Whether the CRTC should be enabled, gates all other state. 620eec75f35ce4 Daniel Vetter 2018-07-09 88 * This controls reservations of shared resources. Actual hardware state 620eec75f35ce4 Daniel Vetter 2018-07-09 89 * is controlled by @active. 620eec75f35ce4 Daniel Vetter 2018-07-09 90 */ cc4ceb484b37b9 Daniel Vetter 2014-07-25 91 bool enable; 620eec75f35ce4 Daniel Vetter 2018-07-09 92 620eec75f35ce4 Daniel Vetter 2018-07-09 93 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 94 * @active: Whether the CRTC is actively displaying (used for DPMS). 620eec75f35ce4 Daniel Vetter 2018-07-09 95 * Implies that @enable is set. The driver must not release any shared 620eec75f35ce4 Daniel Vetter 2018-07-09 96 * resources if @active is set to false but @enable still true, because 620eec75f35ce4 Daniel Vetter 2018-07-09 97 * userspace expects that a DPMS ON always succeeds. 620eec75f35ce4 Daniel Vetter 2018-07-09 98 * 620eec75f35ce4 Daniel Vetter 2018-07-09 99 * Hence drivers must not consult @active in their various 620eec75f35ce4 Daniel Vetter 2018-07-09 100 * &drm_mode_config_funcs.atomic_check callback to reject an atomic 620eec75f35ce4 Daniel Vetter 2018-07-09 101 * commit. They can consult it to aid in the computation of derived 620eec75f35ce4 Daniel Vetter 2018-07-09 102 * hardware state, since even in the DPMS OFF state the display hardware 620eec75f35ce4 Daniel Vetter 2018-07-09 103 * should be as much powered down as when the CRTC is completely 620eec75f35ce4 Daniel Vetter 2018-07-09 104 * disabled through setting @enable to false. 620eec75f35ce4 Daniel Vetter 2018-07-09 105 */ d9b13620fa09d2 Daniel Vetter 2014-11-26 106 bool active; 144ecb97cd57d2 Daniel Vetter 2014-10-27 107 620eec75f35ce4 Daniel Vetter 2018-07-09 108 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 109 * @planes_changed: Planes on this crtc are updated. Used by the atomic 620eec75f35ce4 Daniel Vetter 2018-07-09 110 * helpers and drivers to steer the atomic commit control flow. 620eec75f35ce4 Daniel Vetter 2018-07-09 111 */ c2fcd274bce521 Daniel Vetter 2014-11-05 112 bool planes_changed : 1; 620eec75f35ce4 Daniel Vetter 2018-07-09 113 620eec75f35ce4 Daniel Vetter 2018-07-09 114 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 115 * @mode_changed: @mode or @enable has been changed. Used by the atomic 620eec75f35ce4 Daniel Vetter 2018-07-09 116 * helpers and drivers to steer the atomic commit control flow. See also 620eec75f35ce4 Daniel Vetter 2018-07-09 117 * drm_atomic_crtc_needs_modeset(). 620eec75f35ce4 Daniel Vetter 2018-07-09 118 * 620eec75f35ce4 Daniel Vetter 2018-07-09 119 * Drivers are supposed to set this for any CRTC state changes that 620eec75f35ce4 Daniel Vetter 2018-07-09 120 * require a full modeset. They can also reset it to false if e.g. a 620eec75f35ce4 Daniel Vetter 2018-07-09 121 * @mode change can be done without a full modeset by only changing 620eec75f35ce4 Daniel Vetter 2018-07-09 122 * scaler settings. 620eec75f35ce4 Daniel Vetter 2018-07-09 123 */ 623369e533e8a5 Daniel Vetter 2014-09-16 124 bool mode_changed : 1; 620eec75f35ce4 Daniel Vetter 2018-07-09 125 620eec75f35ce4 Daniel Vetter 2018-07-09 126 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 127 * @active_changed: @active has been toggled. Used by the atomic 620eec75f35ce4 Daniel Vetter 2018-07-09 128 * helpers and drivers to steer the atomic commit control flow. See also 620eec75f35ce4 Daniel Vetter 2018-07-09 129 * drm_atomic_crtc_needs_modeset(). 620eec75f35ce4 Daniel Vetter 2018-07-09 130 */ eab3bbeffd1521 Daniel Vetter 2015-01-22 131 bool active_changed : 1; 620eec75f35ce4 Daniel Vetter 2018-07-09 132 620eec75f35ce4 Daniel Vetter 2018-07-09 133 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 134 * @connectors_changed: Connectors to this crtc have been updated, 620eec75f35ce4 Daniel Vetter 2018-07-09 135 * either in their state or routing. Used by the atomic 620eec75f35ce4 Daniel Vetter 2018-07-09 136 * helpers and drivers to steer the atomic commit control flow. See also 620eec75f35ce4 Daniel Vetter 2018-07-09 137 * drm_atomic_crtc_needs_modeset(). 620eec75f35ce4 Daniel Vetter 2018-07-09 138 * 620eec75f35ce4 Daniel Vetter 2018-07-09 139 * Drivers are supposed to set this as-needed from their own atomic 620eec75f35ce4 Daniel Vetter 2018-07-09 140 * check code, e.g. from &drm_encoder_helper_funcs.atomic_check 620eec75f35ce4 Daniel Vetter 2018-07-09 141 */ fc596660dd4e83 Maarten Lankhorst 2015-07-21 142 bool connectors_changed : 1; 620eec75f35ce4 Daniel Vetter 2018-07-09 143 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 144 * @zpos_changed: zpos values of planes on this crtc have been updated. 620eec75f35ce4 Daniel Vetter 2018-07-09 145 * Used by the atomic helpers and drivers to steer the atomic commit 620eec75f35ce4 Daniel Vetter 2018-07-09 146 * control flow. 620eec75f35ce4 Daniel Vetter 2018-07-09 147 */ 44d1240d006c9c Marek Szyprowski 2016-06-13 148 bool zpos_changed : 1; 620eec75f35ce4 Daniel Vetter 2018-07-09 149 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 150 * @color_mgmt_changed: Color management properties have changed 620eec75f35ce4 Daniel Vetter 2018-07-09 151 * (@gamma_lut, @degamma_lut or @ctm). Used by the atomic helpers and 620eec75f35ce4 Daniel Vetter 2018-07-09 152 * drivers to steer the atomic commit control flow. 620eec75f35ce4 Daniel Vetter 2018-07-09 153 */ 5488dc16fde745 Lionel Landwerlin 2016-02-26 154 bool color_mgmt_changed : 1; 623369e533e8a5 Daniel Vetter 2014-09-16 155 b25c60af7a8773 Boris Brezillon 2018-07-03 156 /** b25c60af7a8773 Boris Brezillon 2018-07-03 157 * @no_vblank: b25c60af7a8773 Boris Brezillon 2018-07-03 158 * b25c60af7a8773 Boris Brezillon 2018-07-03 159 * Reflects the ability of a CRTC to send VBLANK events. This state 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 160 * usually depends on the pipeline configuration. If set to true, DRM 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 161 * atomic helpers will send out a fake VBLANK event during display 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 162 * updates after all hardware changes have been committed. This is 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 163 * implemented in drm_atomic_helper_fake_vblank(). 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 164 * 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 165 * One usage is for drivers and/or hardware without support for VBLANK 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 166 * interrupts. Such drivers typically do not initialize vblanking 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 167 * (i.e., call drm_vblank_init() with the number of CRTCs). For CRTCs 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 168 * without initialized vblanking, this field is set to true in 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 169 * drm_atomic_helper_check_modeset(), and a fake VBLANK event will be 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 170 * send out on each update of the display pipeline by 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 171 * drm_atomic_helper_fake_vblank(). 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 172 * 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 173 * Another usage is CRTCs feeding a writeback connector operating in 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 174 * oneshot mode. In this case the fake VBLANK event is only generated 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 175 * when a job is queued to the writeback connector, and we want the 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 176 * core to fake VBLANK events when this part of the pipeline hasn't 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 177 * changed but others had or when the CRTC and connectors are being 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 178 * disabled. b25c60af7a8773 Boris Brezillon 2018-07-03 179 * b25c60af7a8773 Boris Brezillon 2018-07-03 180 * __drm_atomic_helper_crtc_duplicate_state() will not reset the value b25c60af7a8773 Boris Brezillon 2018-07-03 181 * from the current state, the CRTC driver is then responsible for b25c60af7a8773 Boris Brezillon 2018-07-03 182 * updating this field when needed. b25c60af7a8773 Boris Brezillon 2018-07-03 183 * b25c60af7a8773 Boris Brezillon 2018-07-03 184 * Note that the combination of &drm_crtc_state.event == NULL and b25c60af7a8773 Boris Brezillon 2018-07-03 185 * &drm_crtc_state.no_blank == true is valid and usually used when the b25c60af7a8773 Boris Brezillon 2018-07-03 186 * writeback connector attached to the CRTC has a new job queued. In b25c60af7a8773 Boris Brezillon 2018-07-03 187 * this case the driver will send the VBLANK event on its own when the b25c60af7a8773 Boris Brezillon 2018-07-03 188 * writeback job is complete. b25c60af7a8773 Boris Brezillon 2018-07-03 189 */ b25c60af7a8773 Boris Brezillon 2018-07-03 190 bool no_vblank : 1; b25c60af7a8773 Boris Brezillon 2018-07-03 191 620eec75f35ce4 Daniel Vetter 2018-07-09 192 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 193 * @plane_mask: Bitmask of drm_plane_mask(plane) of planes attached to 620eec75f35ce4 Daniel Vetter 2018-07-09 194 * this CRTC. 6ddd388ab222b6 Rob Clark 2014-11-21 195 */ 6ddd388ab222b6 Rob Clark 2014-11-21 196 u32 plane_mask; 6ddd388ab222b6 Rob Clark 2014-11-21 197 620eec75f35ce4 Daniel Vetter 2018-07-09 198 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 199 * @connector_mask: Bitmask of drm_connector_mask(connector) of 620eec75f35ce4 Daniel Vetter 2018-07-09 200 * connectors attached to this CRTC. 620eec75f35ce4 Daniel Vetter 2018-07-09 201 */ 4cd9fa529d77dd Maarten Lankhorst 2016-01-04 202 u32 connector_mask; 620eec75f35ce4 Daniel Vetter 2018-07-09 203 620eec75f35ce4 Daniel Vetter 2018-07-09 204 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 205 * @encoder_mask: Bitmask of drm_encoder_mask(encoder) of encoders 620eec75f35ce4 Daniel Vetter 2018-07-09 206 * attached to this CRTC. 620eec75f35ce4 Daniel Vetter 2018-07-09 207 */ e87a52b3894360 Maarten Lankhorst 2016-01-28 208 u32 encoder_mask; 4cd9fa529d77dd Maarten Lankhorst 2016-01-04 209 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 210 /** 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 211 * @adjusted_mode: 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 212 * 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 213 * Internal display timings which can be used by the driver to handle 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 214 * differences between the mode requested by userspace in @mode and what 584a0146ec4989 Philippe Cornu 2018-04-09 215 * is actually programmed into the hardware. 584a0146ec4989 Philippe Cornu 2018-04-09 216 * 620eec75f35ce4 Daniel Vetter 2018-07-09 217 * For drivers using &drm_bridge, this stores hardware display timings 584a0146ec4989 Philippe Cornu 2018-04-09 218 * used between the CRTC and the first bridge. For other drivers, the 584a0146ec4989 Philippe Cornu 2018-04-09 219 * meaning of the adjusted_mode field is purely driver implementation 584a0146ec4989 Philippe Cornu 2018-04-09 220 * defined information, and will usually be used to store the hardware 584a0146ec4989 Philippe Cornu 2018-04-09 221 * display timings used between the CRTC and encoder blocks. 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 222 */ 2f324b42b7b24a Daniel Vetter 2014-10-29 223 struct drm_display_mode adjusted_mode; 2f324b42b7b24a Daniel Vetter 2014-10-29 224 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 225 /** 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 226 * @mode: 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 227 * 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 228 * Display timings requested by userspace. The driver should try to 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 229 * match the refresh rate as close as possible (but note that it's 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 230 * undefined what exactly is close enough, e.g. some of the HDMI modes 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 231 * only differ in less than 1% of the refresh rate). The active width 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 232 * and height as observed by userspace for positioning planes must match 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 233 * exactly. 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 234 * 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 235 * For external connectors where the sink isn't fixed (like with a 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 236 * built-in panel), this mode here should match the physical mode on the 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 237 * wire to the last details (i.e. including sync polarities and 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 238 * everything). 9de5d4a61cc2a9 Daniel Vetter 2017-05-15 239 */ 144ecb97cd57d2 Daniel Vetter 2014-10-27 240 struct drm_display_mode mode; 144ecb97cd57d2 Daniel Vetter 2014-10-27 241 620eec75f35ce4 Daniel Vetter 2018-07-09 242 /** 620eec75f35ce4 Daniel Vetter 2018-07-09 243 * @mode_blob: &drm_property_blob for @mode, for exposing the mode to 620eec75f35ce4 Daniel Vetter 2018-07-09 244 * atomic userspace. 620eec75f35ce4 Daniel Vetter 2018-07-09 245 */ 99cf4a29fa2446 Daniel Stone 2015-05-25 246 struct drm_property_blob *mode_blob; 99cf4a29fa2446 Daniel Stone 2015-05-25 247 2e38178e23e63b Daniel Vetter 2017-04-12 248 /** 2e38178e23e63b Daniel Vetter 2017-04-12 249 * @degamma_lut: 2e38178e23e63b Daniel Vetter 2017-04-12 250 * 2e38178e23e63b Daniel Vetter 2017-04-12 251 * Lookup table for converting framebuffer pixel data before apply the 2e38178e23e63b Daniel Vetter 2017-04-12 252 * color conversion matrix @ctm. See drm_crtc_enable_color_mgmt(). The 2e38178e23e63b Daniel Vetter 2017-04-12 253 * blob (if not NULL) is an array of &struct drm_color_lut. 2e38178e23e63b Daniel Vetter 2017-04-12 254 */ 5488dc16fde745 Lionel Landwerlin 2016-02-26 255 struct drm_property_blob *degamma_lut; 2e38178e23e63b Daniel Vetter 2017-04-12 256 2e38178e23e63b Daniel Vetter 2017-04-12 257 /** 2e38178e23e63b Daniel Vetter 2017-04-12 258 * @ctm: 2e38178e23e63b Daniel Vetter 2017-04-12 259 * 2e38178e23e63b Daniel Vetter 2017-04-12 260 * Color transformation matrix. See drm_crtc_enable_color_mgmt(). The 2e38178e23e63b Daniel Vetter 2017-04-12 261 * blob (if not NULL) is a &struct drm_color_ctm. 2e38178e23e63b Daniel Vetter 2017-04-12 262 */ 5488dc16fde745 Lionel Landwerlin 2016-02-26 263 struct drm_property_blob *ctm; 2e38178e23e63b Daniel Vetter 2017-04-12 264 2e38178e23e63b Daniel Vetter 2017-04-12 265 /** 2e38178e23e63b Daniel Vetter 2017-04-12 266 * @gamma_lut: 2e38178e23e63b Daniel Vetter 2017-04-12 267 * 2e38178e23e63b Daniel Vetter 2017-04-12 268 * Lookup table for converting pixel data after the color conversion 2e38178e23e63b Daniel Vetter 2017-04-12 269 * matrix @ctm. See drm_crtc_enable_color_mgmt(). The blob (if not 2e38178e23e63b Daniel Vetter 2017-04-12 270 * NULL) is an array of &struct drm_color_lut. 4fd5e720b709b8 Daniel Vetter 2022-01-24 271 * 4fd5e720b709b8 Daniel Vetter 2022-01-24 272 * Note that for mostly historical reasons stemming from Xorg heritage, 4fd5e720b709b8 Daniel Vetter 2022-01-24 273 * this is also used to store the color map (also sometimes color lut, 4fd5e720b709b8 Daniel Vetter 2022-01-24 274 * CLUT or color palette) for indexed formats like DRM_FORMAT_C8. 2e38178e23e63b Daniel Vetter 2017-04-12 275 */ 5488dc16fde745 Lionel Landwerlin 2016-02-26 276 struct drm_property_blob *gamma_lut; 5488dc16fde745 Lionel Landwerlin 2016-02-26 277 f869a6ecf25419 Andrey Grodzovsky 2017-01-06 278 /** f869a6ecf25419 Andrey Grodzovsky 2017-01-06 279 * @target_vblank: f869a6ecf25419 Andrey Grodzovsky 2017-01-06 280 * f869a6ecf25419 Andrey Grodzovsky 2017-01-06 281 * Target vertical blank period when a page flip f869a6ecf25419 Andrey Grodzovsky 2017-01-06 282 * should take effect. f869a6ecf25419 Andrey Grodzovsky 2017-01-06 283 */ f869a6ecf25419 Andrey Grodzovsky 2017-01-06 284 u32 target_vblank; f869a6ecf25419 Andrey Grodzovsky 2017-01-06 285 6cbe5c466d7336 Andrey Grodzovsky 2017-02-02 286 /** 4d85f45c73a22b Daniel Vetter 2019-09-03 287 * @async_flip: 6cbe5c466d7336 Andrey Grodzovsky 2017-02-02 288 * 4d85f45c73a22b Daniel Vetter 2019-09-03 289 * This is set when DRM_MODE_PAGE_FLIP_ASYNC is set in the legacy 4d85f45c73a22b Daniel Vetter 2019-09-03 290 * PAGE_FLIP IOCTL. It's not wired up for the atomic IOCTL itself yet. 6cbe5c466d7336 Andrey Grodzovsky 2017-02-02 291 */ 4d85f45c73a22b Daniel Vetter 2019-09-03 292 bool async_flip; 6cbe5c466d7336 Andrey Grodzovsky 2017-02-02 293 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 294 /** 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 295 * @vrr_enabled: 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 296 * 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 297 * Indicates if variable refresh rate should be enabled for the CRTC. 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 298 * Support for the requested vrr state will depend on driver and 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 299 * hardware capabiltiy - lacking support is not treated as failure. 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 300 */ 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 301 bool vrr_enabled; 1398958cfd8d33 Nicholas Kazlauskas 2018-10-04 302 1452c25b0e6027 Sean Paul 2019-06-12 303 /** 1452c25b0e6027 Sean Paul 2019-06-12 304 * @self_refresh_active: 1452c25b0e6027 Sean Paul 2019-06-12 305 * 1452c25b0e6027 Sean Paul 2019-06-12 306 * Used by the self refresh helpers to denote when a self refresh 1452c25b0e6027 Sean Paul 2019-06-12 307 * transition is occurring. This will be set on enable/disable callbacks 1452c25b0e6027 Sean Paul 2019-06-12 308 * when self refresh is being enabled or disabled. In some cases, it may 1452c25b0e6027 Sean Paul 2019-06-12 309 * not be desirable to fully shut off the crtc during self refresh. 1452c25b0e6027 Sean Paul 2019-06-12 310 * CRTC's can inspect this flag and determine the best course of action. 1452c25b0e6027 Sean Paul 2019-06-12 311 */ 1452c25b0e6027 Sean Paul 2019-06-12 312 bool self_refresh_active; 1452c25b0e6027 Sean Paul 2019-06-12 313 5c759eda9b04cd Pankaj Bharadiya 2020-10-20 314 /** 5c759eda9b04cd Pankaj Bharadiya 2020-10-20 315 * @scaling_filter: 5c759eda9b04cd Pankaj Bharadiya 2020-10-20 316 * 5c759eda9b04cd Pankaj Bharadiya 2020-10-20 317 * Scaling filter to be applied 5c759eda9b04cd Pankaj Bharadiya 2020-10-20 318 */ 5c759eda9b04cd Pankaj Bharadiya 2020-10-20 319 enum drm_scaling_filter scaling_filter; 5c759eda9b04cd Pankaj Bharadiya 2020-10-20 320 61802130d85fda Daniel Vetter 2016-09-30 321 /** 61802130d85fda Daniel Vetter 2016-09-30 322 * @event: 61802130d85fda Daniel Vetter 2016-09-30 323 * 61802130d85fda Daniel Vetter 2016-09-30 324 * Optional pointer to a DRM event to signal upon completion of the 61802130d85fda Daniel Vetter 2016-09-30 325 * state update. The driver must send out the event when the atomic 61802130d85fda Daniel Vetter 2016-09-30 326 * commit operation completes. There are two cases: 61802130d85fda Daniel Vetter 2016-09-30 327 * 61802130d85fda Daniel Vetter 2016-09-30 328 * - The event is for a CRTC which is being disabled through this 61802130d85fda Daniel Vetter 2016-09-30 329 * atomic commit. In that case the event can be send out any time 61802130d85fda Daniel Vetter 2016-09-30 330 * after the hardware has stopped scanning out the current 61802130d85fda Daniel Vetter 2016-09-30 331 * framebuffers. It should contain the timestamp and counter for the 8938d13585bc91 Daniel Vetter 2017-05-24 332 * last vblank before the display pipeline was shut off. The simplest 8938d13585bc91 Daniel Vetter 2017-05-24 333 * way to achieve that is calling drm_crtc_send_vblank_event() 8938d13585bc91 Daniel Vetter 2017-05-24 334 * somewhen after drm_crtc_vblank_off() has been called. 61802130d85fda Daniel Vetter 2016-09-30 335 * 61802130d85fda Daniel Vetter 2016-09-30 336 * - For a CRTC which is enabled at the end of the commit (even when it 61802130d85fda Daniel Vetter 2016-09-30 337 * undergoes an full modeset) the vblank timestamp and counter must 61802130d85fda Daniel Vetter 2016-09-30 338 * be for the vblank right before the first frame that scans out the 61802130d85fda Daniel Vetter 2016-09-30 339 * new set of buffers. Again the event can only be sent out after the 61802130d85fda Daniel Vetter 2016-09-30 340 * hardware has stopped scanning out the old buffers. 61802130d85fda Daniel Vetter 2016-09-30 341 * 61802130d85fda Daniel Vetter 2016-09-30 342 * - Events for disabled CRTCs are not allowed, and drivers can ignore 61802130d85fda Daniel Vetter 2016-09-30 343 * that case. 61802130d85fda Daniel Vetter 2016-09-30 344 * 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 345 * For very simple hardware without VBLANK interrupt, enabling 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 346 * &struct drm_crtc_state.no_vblank makes DRM's atomic commit helpers 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 347 * send a fake VBLANK event at the end of the display update after all 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 348 * hardware changes have been applied. See 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 349 * drm_atomic_helper_fake_vblank(). 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 350 * 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 351 * For more complex hardware this 7beb691f1e6f34 Thomas Zimmermann 2020-01-29 352 * can be handled by the drm_crtc_send_vblank_event() function, 61802130d85fda Daniel Vetter 2016-09-30 353 * which the driver should call on the provided event upon completion of 61802130d85fda Daniel Vetter 2016-09-30 354 * the atomic commit. Note that if the driver supports vblank signalling 61802130d85fda Daniel Vetter 2016-09-30 355 * and timestamping the vblank counters and timestamps must agree with 61802130d85fda Daniel Vetter 2016-09-30 356 * the ones returned from page flip events. With the current vblank 61802130d85fda Daniel Vetter 2016-09-30 357 * helper infrastructure this can be achieved by holding a vblank 61802130d85fda Daniel Vetter 2016-09-30 358 * reference while the page flip is pending, acquired through 61802130d85fda Daniel Vetter 2016-09-30 359 * drm_crtc_vblank_get() and released with drm_crtc_vblank_put(). 61802130d85fda Daniel Vetter 2016-09-30 360 * Drivers are free to implement their own vblank counter and timestamp 61802130d85fda Daniel Vetter 2016-09-30 361 * tracking though, e.g. if they have accurate timestamp registers in 61802130d85fda Daniel Vetter 2016-09-30 362 * hardware. 61802130d85fda Daniel Vetter 2016-09-30 363 * 61802130d85fda Daniel Vetter 2016-09-30 364 * For hardware which supports some means to synchronize vblank 61802130d85fda Daniel Vetter 2016-09-30 365 * interrupt delivery with committing display state there's also 61802130d85fda Daniel Vetter 2016-09-30 366 * drm_crtc_arm_vblank_event(). See the documentation of that function 61802130d85fda Daniel Vetter 2016-09-30 367 * for a detailed discussion of the constraints it needs to be used 61802130d85fda Daniel Vetter 2016-09-30 368 * safely. 66f8c100039661 Daniel Vetter 2017-03-08 369 * 66f8c100039661 Daniel Vetter 2017-03-08 370 * If the device can't notify of flip completion in a race-free way 66f8c100039661 Daniel Vetter 2017-03-08 371 * at all, then the event should be armed just after the page flip is 66f8c100039661 Daniel Vetter 2017-03-08 372 * committed. In the worst case the driver will send the event to 66f8c100039661 Daniel Vetter 2017-03-08 373 * userspace one frame too late. This doesn't allow for a real atomic 66f8c100039661 Daniel Vetter 2017-03-08 374 * update, but it should avoid tearing. 61802130d85fda Daniel Vetter 2016-09-30 375 */ 144ecb97cd57d2 Daniel Vetter 2014-10-27 376 struct drm_pending_vblank_event *event; 144ecb97cd57d2 Daniel Vetter 2014-10-27 377 163bcc2c74a22c Maarten Lankhorst 2017-09-04 378 /** 163bcc2c74a22c Maarten Lankhorst 2017-09-04 379 * @commit: 163bcc2c74a22c Maarten Lankhorst 2017-09-04 380 * 163bcc2c74a22c Maarten Lankhorst 2017-09-04 381 * This tracks how the commit for this update proceeds through the 163bcc2c74a22c Maarten Lankhorst 2017-09-04 382 * various phases. This is never cleared, except when we destroy the 163bcc2c74a22c Maarten Lankhorst 2017-09-04 383 * state, so that subsequent commits can synchronize with previous ones. 163bcc2c74a22c Maarten Lankhorst 2017-09-04 384 */ 163bcc2c74a22c Maarten Lankhorst 2017-09-04 385 struct drm_crtc_commit *commit; 163bcc2c74a22c Maarten Lankhorst 2017-09-04 386 620eec75f35ce4 Daniel Vetter 2018-07-09 387 /** @state: backpointer to global drm_atomic_state */ 144ecb97cd57d2 Daniel Vetter 2014-10-27 388 struct drm_atomic_state *state; c838ee8e68deff Lin Yujun 2024-02-04 389 c838ee8e68deff Lin Yujun 2024-02-04 390 KABI_RESERVE(1) c838ee8e68deff Lin Yujun 2024-02-04 391 KABI_RESERVE(2) 144ecb97cd57d2 Daniel Vetter 2014-10-27 @392 }; f453ba0460742a Dave Airlie 2008-11-07 393 :::::: The code at line 392 was first introduced by commit :::::: 144ecb97cd57d2a61cc455730a3337e413499cae drm: Add atomic driver interface definitions for objects :::::: TO: Daniel Vetter <daniel.vetter(a)ffwll.ch> :::::: CC: Daniel Vetter <daniel.vetter(a)ffwll.ch> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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