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[PATCH OLK-6.6] io_uring/kbuf: reallocate buf lists on upgrade
by Long Li 21 Mar '25

21 Mar '25

From: Pavel Begunkov <asml.silence(a)gmail.com> stable inclusion from stable-v6.6.78 commit 146a185f6c05ee263db715f860620606303c4633 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBRNOR CVE: CVE-2025-21836 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- commit 8802766324e1f5d414a81ac43365c20142e85603 upstream. IORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it was created for legacy selected buffer and has been emptied. It violates the requirement that most of the field should stay stable after publish. Always reallocate it instead. Cc: stable(a)vger.kernel.org Reported-by: Pumpkin Chang <pumpkin(a)devco.re> Fixes: 2fcabce2d7d34 ("io_uring: disallow mixed provided buffer group registrations") Signed-off-by: Pavel Begunkov <asml.silence(a)gmail.com> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- io_uring/kbuf.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c index 702c08c26cd4..b6fbae874f27 100644 --- a/io_uring/kbuf.c +++ b/io_uring/kbuf.c @@ -301,6 +301,12 @@ void io_destroy_buffers(struct io_ring_ctx *ctx) } } +static void io_destroy_bl(struct io_ring_ctx *ctx, struct io_buffer_list *bl) +{ + xa_erase(&ctx->io_bl_xa, bl->bgid); + io_put_bl(ctx, bl); +} + int io_remove_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { struct io_provide_buf *p = io_kiocb_to_cmd(req, struct io_provide_buf); @@ -642,12 +648,13 @@ int io_register_pbuf_ring(struct io_ring_ctx *ctx, void __user *arg) /* if mapped buffer ring OR classic exists, don't allow */ if (bl->is_mapped || !list_empty(&bl->buf_list)) return -EEXIST; - } else { - free_bl = bl = kzalloc(sizeof(*bl), GFP_KERNEL); - if (!bl) - return -ENOMEM; + io_destroy_bl(ctx, bl); } + free_bl = bl = kzalloc(sizeof(*bl), GFP_KERNEL); + if (!bl) + return -ENOMEM; + if (!(reg.flags & IOU_PBUF_RING_MMAP)) ret = io_pin_pbuf_ring(&reg, bl); else -- 2.39.2

2 1

[PATCH OLK-5.10] io_uring: prevent opcode speculation
by Long Li 21 Mar '25

21 Mar '25

From: Pavel Begunkov <asml.silence(a)gmail.com> mainline inclusion from mainline-v6.10-rc2 commit 1e988c3fe1264708f4f92109203ac5b1d65de50b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBSVZU CVE: CVE-2025-21863 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- sqe->opcode is used for different tables, make sure we santitise it against speculations. Cc: stable(a)vger.kernel.org Fixes: d3656344fea03 ("io_uring: add lookup table for various opcode needs") Signed-off-by: Pavel Begunkov <asml.silence(a)gmail.com> Reviewed-by: Li Zetao <lizetao1(a)huawei.com> Link: https://lore.kernel.org/r/7eddbf31c8ca0a3947f8ed98271acc2b4349c016.17395684… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Conflicts: io_uring/io_uring.c [Context conflict] Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- io_uring/io_uring.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 17a4e37a177f..883e2b74f82e 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -7196,6 +7196,8 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, if (!io_check_restriction(ctx, req, sqe_flags)) return -EACCES; + req->opcode = array_index_nospec(req->opcode, IORING_OP_LAST); + if ((sqe_flags & IOSQE_BUFFER_SELECT) && !io_op_defs[req->opcode].buffer_select) return -EOPNOTSUPP; -- 2.39.2

2 1

[openeuler:OLK-5.10 2816/2816] drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1137:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1
by kernel test robot 21 Mar '25

21 Mar '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 762816c3c07e052877c68911685e3700fe073298 commit: a0c5bfdbc099daf30cbadb9657803f0cb3f89d0b [2816/2816] drivers: support for rnpm drivers from Mucse Technology N10/N400 config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250321/202503210356.tFg9vkJQ-lkp@…) compiler: clang version 20.1.1 (https://github.com/llvm/llvm-project 424c2d9b7e4de40d0804dd374721e6411c27d1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250321/202503210356.tFg9vkJQ-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/202503210356.tFg9vkJQ-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/mucse/rnpm/rnpm_common.c:12: >> drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1137:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1137 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1162:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1162 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ 2 warnings generated. -- In file included from drivers/net/ethernet/mucse/rnpm/rnpm_ethtool.c:20: >> drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1137:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1137 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1162:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1162 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_ethtool.c:1232:7: warning: variable 'autoneg_changed' set but not used [-Wunused-but-set-variable] 1232 | bool autoneg_changed = false, duplex_changed = false; | ^ drivers/net/ethernet/mucse/rnpm/rnpm_ethtool.c:1232:32: warning: variable 'duplex_changed' set but not used [-Wunused-but-set-variable] 1232 | bool autoneg_changed = false, duplex_changed = false; | ^ drivers/net/ethernet/mucse/rnpm/rnpm_ethtool.c:2029:6: warning: variable 'dma_ch' set but not used [-Wunused-but-set-variable] 2029 | u32 dma_ch; | ^ 5 warnings generated. -- In file included from drivers/net/ethernet/mucse/rnpm/rnpm_main.c:32: >> drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1137:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1137 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1162:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1162 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:245:6: warning: no previous prototype for function 'rnpm_pf_service_event_schedule' [-Wmissing-prototypes] 245 | void rnpm_pf_service_event_schedule(struct rnpm_pf_adapter *pf_adapter) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:245:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 245 | void rnpm_pf_service_event_schedule(struct rnpm_pf_adapter *pf_adapter) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:1768:5: warning: no previous prototype for function 'rnpm_rx_ring_reinit' [-Wmissing-prototypes] 1768 | int rnpm_rx_ring_reinit(struct rnpm_adapter *adapter, struct rnpm_ring *rx_ring) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:1768:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1768 | int rnpm_rx_ring_reinit(struct rnpm_adapter *adapter, struct rnpm_ring *rx_ring) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:1957:7: warning: variable 'xdp_xmit' set but not used [-Wunused-but-set-variable] 1957 | bool xdp_xmit = false; | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2142:6: warning: no previous prototype for function 'rnpm_write_eitr' [-Wmissing-prototypes] 2142 | void rnpm_write_eitr(struct rnpm_q_vector *q_vector, bool is_rxframe) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2142:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2142 | void rnpm_write_eitr(struct rnpm_q_vector *q_vector, bool is_rxframe) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2381:6: warning: variable 'packets' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] 2381 | if (!ring_container->ring) | ^~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2387:7: note: uninitialized use occurs here 2387 | if (!packets) | ^~~~~~~ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2381:2: note: remove the 'if' if its condition is always true 2381 | if (!ring_container->ring) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ 2382 | 2383 | packets = ring_container->total_packets; drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2374:37: note: initialize the variable 'packets' to silence this warning 2374 | unsigned int avg_wire_size, packets, bytes; | ^ | = 0 drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2969:5: warning: no previous prototype for function 'rnpm_xmit_nop_frame_ring' [-Wmissing-prototypes] 2969 | int rnpm_xmit_nop_frame_ring(struct rnpm_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2969:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2969 | int rnpm_xmit_nop_frame_ring(struct rnpm_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2985:5: warning: no previous prototype for function 'rnpm_xmit_nop_frame_ring_temp' [-Wmissing-prototypes] 2985 | int rnpm_xmit_nop_frame_ring_temp(struct rnpm_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:2985:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2985 | int rnpm_xmit_nop_frame_ring_temp(struct rnpm_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:3851:6: warning: no previous prototype for function 'rnpm_vlan_stags_flag' [-Wmissing-prototypes] 3851 | void rnpm_vlan_stags_flag(struct rnpm_adapter *adapter) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:3851:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 3851 | void rnpm_vlan_stags_flag(struct rnpm_adapter *adapter) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:3972:6: warning: no previous prototype for function 'control_mac_rx' [-Wmissing-prototypes] 3972 | void control_mac_rx(struct rnpm_adapter *adapter, bool on) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:3972:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 3972 | void control_mac_rx(struct rnpm_adapter *adapter, bool on) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5689:6: warning: no previous prototype for function 'rnpm_pf_service_timer' [-Wmissing-prototypes] 5689 | void rnpm_pf_service_timer(struct timer_list *t) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5689:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 5689 | void rnpm_pf_service_timer(struct timer_list *t) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5707:6: warning: no previous prototype for function 'rnpm_service_timer' [-Wmissing-prototypes] 5707 | void rnpm_service_timer(struct timer_list *t) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5707:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 5707 | void rnpm_service_timer(struct timer_list *t) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5853:21: warning: no previous prototype for function 'wait_all_port_resetting' [-Wmissing-prototypes] 5853 | __maybe_unused void wait_all_port_resetting(struct rnpm_pf_adapter *pf_adapter) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5853:16: note: declare 'static' if the function is not intended to be used outside of this translation unit 5853 | __maybe_unused void wait_all_port_resetting(struct rnpm_pf_adapter *pf_adapter) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5865:21: warning: no previous prototype for function 'clean_all_port_resetting' [-Wmissing-prototypes] 5865 | __maybe_unused void clean_all_port_resetting(struct rnpm_pf_adapter *pf_adapter) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_main.c:5865:16: note: declare 'static' if the function is not intended to be used outside of this translation unit 5865 | __maybe_unused void clean_all_port_resetting(struct rnpm_pf_adapter *pf_adapter) | ^ | static -- In file included from drivers/net/ethernet/mucse/rnpm/rnpm_n10.c:11: >> drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1137:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1137 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1162:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1162 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_n10.c:448:5: warning: no previous prototype for function 'rnpm_reset_pipeline_n10' [-Wmissing-prototypes] 448 | s32 rnpm_reset_pipeline_n10(struct rnpm_hw *hw) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_n10.c:448:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 448 | s32 rnpm_reset_pipeline_n10(struct rnpm_hw *hw) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_n10.c:503:6: warning: variable 'status' set but not used [-Wunused-but-set-variable] 503 | s32 status = 0; | ^ 4 warnings generated. -- In file included from drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:10: >> drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1137:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1137 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1162:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1162 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:14:24: warning: no previous prototype for function 'mbx_cookie_zalloc' [-Wmissing-prototypes] 14 | struct mbx_req_cookie *mbx_cookie_zalloc(int priv_len) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:14:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 14 | struct mbx_req_cookie *mbx_cookie_zalloc(int priv_len) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:28:5: warning: no previous prototype for function 'rnpm_mbx_write_posted_locked' [-Wmissing-prototypes] 28 | int rnpm_mbx_write_posted_locked(struct rnpm_hw *hw, struct mbx_fw_cmd_req *req) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:28:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 28 | int rnpm_mbx_write_posted_locked(struct rnpm_hw *hw, struct mbx_fw_cmd_req *req) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:81:6: warning: no previous prototype for function 'rnpm_link_stat_mark_disable' [-Wmissing-prototypes] 81 | void rnpm_link_stat_mark_disable(struct rnpm_hw *hw) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:81:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 81 | void rnpm_link_stat_mark_disable(struct rnpm_hw *hw) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:86:5: warning: no previous prototype for function 'rnpm_mbx_fw_post_req' [-Wmissing-prototypes] 86 | int rnpm_mbx_fw_post_req(struct rnpm_hw *hw, | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:86:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 86 | int rnpm_mbx_fw_post_req(struct rnpm_hw *hw, | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:153:5: warning: no previous prototype for function 'rnpm_fw_send_cmd_wait' [-Wmissing-prototypes] 153 | int rnpm_fw_send_cmd_wait(struct rnpm_hw *hw, | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:153:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 153 | int rnpm_fw_send_cmd_wait(struct rnpm_hw *hw, | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:633:5: warning: no previous prototype for function 'rnpm_mbx_lldp_all_ports_enable' [-Wmissing-prototypes] 633 | int rnpm_mbx_lldp_all_ports_enable(struct rnpm_hw *hw, bool enable) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:633:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 633 | int rnpm_mbx_lldp_all_ports_enable(struct rnpm_hw *hw, bool enable) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:936:5: warning: no previous prototype for function 'rnpm_mbx_pluginout_evt_en' [-Wmissing-prototypes] 936 | int rnpm_mbx_pluginout_evt_en(struct rnpm_hw *hw, int in_dir, int enable) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:936:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 936 | int rnpm_mbx_pluginout_evt_en(struct rnpm_hw *hw, int in_dir, int enable) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:963:5: warning: no previous prototype for function 'rnpm_fw_get_capablity' [-Wmissing-prototypes] 963 | int rnpm_fw_get_capablity(struct rnpm_hw *hw, struct phy_abilities *abil) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:963:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 963 | int rnpm_fw_get_capablity(struct rnpm_hw *hw, struct phy_abilities *abil) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1153:6: warning: variable 'err' set but not used [-Wunused-but-set-variable] 1153 | int err; | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1188:6: warning: variable 'value' set but not used [-Wunused-but-set-variable] 1188 | int value; | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1184:5: warning: no previous prototype for function 'rnpm_fw_reg_read' [-Wmissing-prototypes] 1184 | int rnpm_fw_reg_read(struct rnpm_hw *hw, int addr, int sz) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1184:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1184 | int rnpm_fw_reg_read(struct rnpm_hw *hw, int addr, int sz) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1255:18: warning: variable 'hw' set but not used [-Wunused-but-set-variable] 1255 | struct rnpm_hw *hw; | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1476:5: warning: no previous prototype for function 'rnpm_get_port_stats2' [-Wmissing-prototypes] 1476 | int rnpm_get_port_stats2(struct rnpm_hw *hw, int *pabs, int *pspeed, int *plink) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1476:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1476 | int rnpm_get_port_stats2(struct rnpm_hw *hw, int *pabs, int *pspeed, int *plink) | ^ | static drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1528:9: warning: variable 'err' is uninitialized when used here [-Wuninitialized] 1528 | return err ? -err : 0; | ^~~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.c:1509:9: note: initialize the variable 'err' to silence this warning 1509 | int err; | ^ | = 0 16 warnings generated. -- In file included from drivers/net/ethernet/mucse/rnpm/rnpm_sysfs.c:17: >> drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1137:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1137 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h:1162:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1162 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnpm/rnpm_sysfs.c:263:5: warning: no previous prototype for function 'rnpm_mbx_get_pn_sn' [-Wmissing-prototypes] 263 | int rnpm_mbx_get_pn_sn(struct rnpm_hw *hw, char pn[33], char sn[33]) | ^ drivers/net/ethernet/mucse/rnpm/rnpm_sysfs.c:263:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 263 | int rnpm_mbx_get_pn_sn(struct rnpm_hw *hw, char pn[33], char sn[33]) | ^ | static 3 warnings generated. vim +/int +1137 drivers/net/ethernet/mucse/rnpm/rnpm_mbx_fw.h 1119 1120 static inline void 1121 build_link_set_loopback_req(struct mbx_fw_cmd_req *req, 1122 void *cookie, 1123 enum LOOPBACK_LEVEL level, 1124 enum LOOPBACK_FORCE_SPEED force_speed) 1125 { 1126 req->flags = 0; 1127 req->opcode = SET_LOOPBACK_MODE; 1128 req->datalen = sizeof(req->loopback); 1129 req->cookie = cookie; 1130 req->reply_lo = 0; 1131 req->reply_hi = 0; 1132 1133 req->loopback.loopback_level = level; 1134 req->loopback.loopback_type = LOOPBACK_TYPE_LOCAL; 1135 if (force_speed != LOOPBACK_FORCE_SPEED_NONE) { 1136 req->loopback.loopback_force_speed = force_speed; > 1137 req->loopback.loopback_force_speed_enable = 1; 1138 } 1139 } 1140 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 0/2] arm64: entry: Support hardware xint and xcall
by Jinjie Ruan 20 Mar '25

20 Mar '25

Support hardware xint and xcall. Jinjie Ruan (2): arm64: entry: Support hardware xint arm64: entry: Support hardware xcall arch/Kconfig | 14 ++--- arch/arm64/Kconfig | 12 ++++ arch/arm64/include/asm/sysreg.h | 7 +++ arch/arm64/kernel/cpufeature.c | 100 +++++++++++++++++++++++++++++++ arch/arm64/kernel/entry-common.c | 75 ++++++++++++++++++++--- arch/arm64/kernel/entry.S | 74 +++++++++++++++++++++-- arch/arm64/tools/cpucaps | 4 +- drivers/irqchip/irq-gic-v3.c | 36 ++++++++++- 8 files changed, 298 insertions(+), 24 deletions(-) -- 2.34.1

2 3

[PATCH OLK-6.6] io_uring: prevent opcode speculation
by Long Li 20 Mar '25

20 Mar '25

From: Pavel Begunkov <asml.silence(a)gmail.com> mainline inclusion from mainline-v6.10-rc2 commit 1e988c3fe1264708f4f92109203ac5b1d65de50b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBSVZU CVE: CVE-2025-21863 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- sqe->opcode is used for different tables, make sure we santitise it against speculations. Cc: stable(a)vger.kernel.org Fixes: d3656344fea03 ("io_uring: add lookup table for various opcode needs") Signed-off-by: Pavel Begunkov <asml.silence(a)gmail.com> Reviewed-by: Li Zetao <lizetao1(a)huawei.com> Link: https://lore.kernel.org/r/7eddbf31c8ca0a3947f8ed98271acc2b4349c016.17395684… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- io_uring/io_uring.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 833fd9b6a1f3..3aaac1023efb 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -2173,6 +2173,8 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, req->opcode = 0; return io_init_fail_req(req, -EINVAL); } + opcode = array_index_nospec(opcode, IORING_OP_LAST); + def = &io_issue_defs[opcode]; if (unlikely(sqe_flags & ~SQE_COMMON_FLAGS)) { /* enforce forwards compatibility on users */ -- 2.39.2

2 1

[openeuler:OLK-5.10 2816/2816] kernel/rcu/update.o: warning: objtool: synchronize_rcu_tasks_rude()+0xe0: unreachable instruction
by kernel test robot 20 Mar '25

20 Mar '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 762816c3c07e052877c68911685e3700fe073298 commit: 2509f2079e7247ed0d695bdb69c3d019a700a4b8 [2816/2816] rcu-tasks: Make rude RCU-Tasks work well with CPU hotplug config: x86_64-buildonly-randconfig-003-20250320 (https://download.01.org/0day-ci/archive/20250320/202503202016.ACG7odcD-lkp@…) compiler: clang version 20.1.1 (https://github.com/llvm/llvm-project 424c2d9b7e4de40d0804dd374721e6411c27d1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250320/202503202016.ACG7odcD-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/202503202016.ACG7odcD-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/rcu/update.o: warning: objtool: synchronize_rcu_tasks_rude()+0xe0: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 2816/2816] drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:898:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1
by kernel test robot 20 Mar '25

20 Mar '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 762816c3c07e052877c68911685e3700fe073298 commit: e53494b741272933726616122ea77143d9742631 [2816/2816] drivers: initial support for rnp drivers from Mucse Technology config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250320/202503201925.S7VuFUSk-lkp@…) compiler: clang version 20.1.1 (https://github.com/llvm/llvm-project 424c2d9b7e4de40d0804dd374721e6411c27d1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250320/202503201925.S7VuFUSk-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/202503201925.S7VuFUSk-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/mucse/rnp/rnp_main.c:34: In file included from drivers/net/ethernet/mucse/rnp/rnp_tc_u32_parse.h:6: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:20: In file included from drivers/net/ethernet/mucse/rnp/rnp_type.h:960: >> drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:898:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 898 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:1068:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1068 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ In file included from drivers/net/ethernet/mucse/rnp/rnp_main.c:34: In file included from drivers/net/ethernet/mucse/rnp/rnp_tc_u32_parse.h:6: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:21: drivers/net/ethernet/mucse/rnp/rnp_common.h:298:7: warning: variable 'has_mac' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:298:16: warning: variable 'has_trans' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:6: warning: variable 'headroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:16: warning: variable 'tailroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:174:6: warning: no previous prototype for function 'rnp_unmap_and_free_tx_resource' [-Wmissing-prototypes] 174 | void rnp_unmap_and_free_tx_resource(struct rnp_ring *ring, | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:174:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 174 | void rnp_unmap_and_free_tx_resource(struct rnp_ring *ring, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:669:5: warning: no previous prototype for function 'rnp_rx_ring_reinit' [-Wmissing-prototypes] 669 | int rnp_rx_ring_reinit(struct rnp_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:669:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 669 | int rnp_rx_ring_reinit(struct rnp_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:1777:7: warning: variable 'xdp_xmit' set but not used [-Wunused-but-set-variable] 1777 | bool xdp_xmit = false; | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:2012:6: warning: no previous prototype for function 'rnp_write_eitr_rx' [-Wmissing-prototypes] 2012 | void rnp_write_eitr_rx(struct rnp_q_vector *q_vector) | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:2012:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2012 | void rnp_write_eitr_rx(struct rnp_q_vector *q_vector) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:2818:6: warning: variable 'rxctrl' set but not used [-Wunused-but-set-variable] 2818 | u32 rxctrl = 0, dma_axi_ctl; | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:3152:6: warning: no previous prototype for function 'rnp_vlan_stags_flag' [-Wmissing-prototypes] 3152 | void rnp_vlan_stags_flag(struct rnp_adapter *adapter) | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:3152:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 3152 | void rnp_vlan_stags_flag(struct rnp_adapter *adapter) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:3558:5: warning: no previous prototype for function 'rnp_xmit_nop_frame_ring' [-Wmissing-prototypes] 3558 | int rnp_xmit_nop_frame_ring(struct rnp_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:3558:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 3558 | int rnp_xmit_nop_frame_ring(struct rnp_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:4811:6: warning: no previous prototype for function 'rnp_service_timer' [-Wmissing-prototypes] 4811 | void rnp_service_timer(struct timer_list *t) | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:4811:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 4811 | void rnp_service_timer(struct timer_list *t) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:4919:6: warning: no previous prototype for function 'rnp_service_task' [-Wmissing-prototypes] 4919 | void rnp_service_task(struct work_struct *work) | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:4919:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 4919 | void rnp_service_task(struct work_struct *work) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:5941:5: warning: no previous prototype for function 'rnp_delete_knode' [-Wmissing-prototypes] 5941 | int rnp_delete_knode(struct net_device *dev, | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:5941:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 5941 | int rnp_delete_knode(struct net_device *dev, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:6030:5: warning: no previous prototype for function 'rnp_config_knode' [-Wmissing-prototypes] 6030 | int rnp_config_knode(struct net_device *dev, __be16 protocol, | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:6030:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 6030 | int rnp_config_knode(struct net_device *dev, __be16 protocol, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:6089:5: warning: no previous prototype for function 'rnp_setup_tc_cls_u32' [-Wmissing-prototypes] 6089 | int rnp_setup_tc_cls_u32(struct net_device *dev, | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:6089:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 6089 | int rnp_setup_tc_cls_u32(struct net_device *dev, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_main.c:6166:6: warning: no previous prototype for function 'rnp_do_reset' [-Wmissing-prototypes] 6166 | void rnp_do_reset(struct net_device *netdev) | ^ drivers/net/ethernet/mucse/rnp/rnp_main.c:6166:1: note: declare 'static' if the function is not intended to be used outside of this translation unit -- In file included from drivers/net/ethernet/mucse/rnp/rnp_common.c:10: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:20: In file included from drivers/net/ethernet/mucse/rnp/rnp_type.h:960: >> drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:898:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 898 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:1068:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1068 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ In file included from drivers/net/ethernet/mucse/rnp/rnp_common.c:10: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:21: drivers/net/ethernet/mucse/rnp/rnp_common.h:298:7: warning: variable 'has_mac' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:298:16: warning: variable 'has_trans' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:6: warning: variable 'headroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:16: warning: variable 'tailroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ 6 warnings generated. -- In file included from drivers/net/ethernet/mucse/rnp/rnp_lib.c:4: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:20: In file included from drivers/net/ethernet/mucse/rnp/rnp_type.h:960: >> drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:898:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 898 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:1068:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1068 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ In file included from drivers/net/ethernet/mucse/rnp/rnp_lib.c:4: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:21: drivers/net/ethernet/mucse/rnp/rnp_common.h:298:7: warning: variable 'has_mac' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:298:16: warning: variable 'has_trans' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:6: warning: variable 'headroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:16: warning: variable 'tailroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_lib.c:439:5: warning: no previous prototype for function 'rnp_acquire_msix_vectors' [-Wmissing-prototypes] 439 | int rnp_acquire_msix_vectors(struct rnp_adapter *adapter, int vectors) | ^ drivers/net/ethernet/mucse/rnp/rnp_lib.c:439:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 439 | int rnp_acquire_msix_vectors(struct rnp_adapter *adapter, int vectors) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_lib.c:985:6: warning: no previous prototype for function 'rnp_print_ring_info' [-Wmissing-prototypes] 985 | void rnp_print_ring_info(struct rnp_adapter *adapter) | ^ drivers/net/ethernet/mucse/rnp/rnp_lib.c:985:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 985 | void rnp_print_ring_info(struct rnp_adapter *adapter) | ^ | static 8 warnings generated. -- In file included from drivers/net/ethernet/mucse/rnp/rnp_n10.c:8: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:20: In file included from drivers/net/ethernet/mucse/rnp/rnp_type.h:960: >> drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:898:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 898 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:1068:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1068 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ In file included from drivers/net/ethernet/mucse/rnp/rnp_n10.c:8: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:21: drivers/net/ethernet/mucse/rnp/rnp_common.h:298:7: warning: variable 'has_mac' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:298:16: warning: variable 'has_trans' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:6: warning: variable 'headroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:16: warning: variable 'tailroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:122:5: warning: no previous prototype for function 'rnp_eth_set_rar_n10' [-Wmissing-prototypes] 122 | s32 rnp_eth_set_rar_n10(struct rnp_eth_info *eth, u32 index, u8 *addr, | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:122:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 122 | s32 rnp_eth_set_rar_n10(struct rnp_eth_info *eth, u32 index, u8 *addr, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:179:5: warning: no previous prototype for function 'rnp_eth_clear_rar_n10' [-Wmissing-prototypes] 179 | s32 rnp_eth_clear_rar_n10(struct rnp_eth_info *eth, u32 index) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:179:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 179 | s32 rnp_eth_clear_rar_n10(struct rnp_eth_info *eth, u32 index) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:214:5: warning: no previous prototype for function 'rnp_eth_set_vmdq_n10' [-Wmissing-prototypes] 214 | s32 rnp_eth_set_vmdq_n10(struct rnp_eth_info *eth, u32 rar, u32 vmdq) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:214:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 214 | s32 rnp_eth_set_vmdq_n10(struct rnp_eth_info *eth, u32 rar, u32 vmdq) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:244:5: warning: no previous prototype for function 'rnp_eth_clear_vmdq_n10' [-Wmissing-prototypes] 244 | s32 rnp_eth_clear_vmdq_n10(struct rnp_eth_info *eth, u32 rar, u32 vmdq) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:244:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 244 | s32 rnp_eth_clear_vmdq_n10(struct rnp_eth_info *eth, u32 rar, u32 vmdq) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:328:5: warning: no previous prototype for function 'rnp_addr_list_itr' [-Wmissing-prototypes] 328 | u8 *rnp_addr_list_itr(struct rnp_hw __maybe_unused *hw, u8 **mc_addr_ptr) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:328:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 328 | u8 *rnp_addr_list_itr(struct rnp_hw __maybe_unused *hw, u8 **mc_addr_ptr) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:359:5: warning: no previous prototype for function 'rnp_eth_update_mc_addr_list_n10' [-Wmissing-prototypes] 359 | s32 rnp_eth_update_mc_addr_list_n10(struct rnp_eth_info *eth, | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:359:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 359 | s32 rnp_eth_update_mc_addr_list_n10(struct rnp_eth_info *eth, | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:442:6: warning: no previous prototype for function 'rnp_eth_clr_mc_addr_n10' [-Wmissing-prototypes] 442 | void rnp_eth_clr_mc_addr_n10(struct rnp_eth_info *eth) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:442:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 442 | void rnp_eth_clr_mc_addr_n10(struct rnp_eth_info *eth) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:457:6: warning: no previous prototype for function 'rnp_eth_update_rss_key_n10' [-Wmissing-prototypes] 457 | void rnp_eth_update_rss_key_n10(struct rnp_eth_info *eth, bool sriov_flag) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:457:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 457 | void rnp_eth_update_rss_key_n10(struct rnp_eth_info *eth, bool sriov_flag) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:486:6: warning: no previous prototype for function 'rnp_eth_update_rss_table_n10' [-Wmissing-prototypes] 486 | void rnp_eth_update_rss_table_n10(struct rnp_eth_info *eth) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:486:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 486 | void rnp_eth_update_rss_table_n10(struct rnp_eth_info *eth) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:511:5: warning: no previous prototype for function 'rnp_eth_set_vfta_n10' [-Wmissing-prototypes] 511 | s32 rnp_eth_set_vfta_n10(struct rnp_eth_info *eth, u32 vlan, bool vlan_on) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:511:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 511 | s32 rnp_eth_set_vfta_n10(struct rnp_eth_info *eth, u32 vlan, bool vlan_on) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:551:6: warning: no previous prototype for function 'rnp_eth_clr_vfta_n10' [-Wmissing-prototypes] 551 | void rnp_eth_clr_vfta_n10(struct rnp_eth_info *eth) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:551:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 551 | void rnp_eth_clr_vfta_n10(struct rnp_eth_info *eth) | ^ | static drivers/net/ethernet/mucse/rnp/rnp_n10.c:577:5: warning: no previous prototype for function 'rnp_layer2_pritologic_n10' [-Wmissing-prototypes] 577 | u16 rnp_layer2_pritologic_n10(u16 hw_id) | ^ drivers/net/ethernet/mucse/rnp/rnp_n10.c:577:1: note: declare 'static' if the function is not intended to be used outside of this translation unit -- In file included from drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.c:9: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:20: In file included from drivers/net/ethernet/mucse/rnp/rnp_type.h:960: >> drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:898:37: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 898 | req->set_phy_reg.recall_qsfp_page = 1; | ^ ~ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h:1068:45: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion] 1068 | req->loopback.loopback_force_speed_enable = 1; | ^ ~ In file included from drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.c:9: In file included from drivers/net/ethernet/mucse/rnp/rnp.h:21: drivers/net/ethernet/mucse/rnp/rnp_common.h:298:7: warning: variable 'has_mac' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:298:16: warning: variable 'has_trans' set but not used [-Wunused-but-set-variable] 298 | bool has_mac, has_trans; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:6: warning: variable 'headroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_common.h:299:16: warning: variable 'tailroom' set but not used [-Wunused-but-set-variable] 299 | int headroom, tailroom; | ^ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.c:1100:6: warning: variable 'err' set but not used [-Wunused-but-set-variable] 1100 | int err; | ^ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.c:1140:6: warning: variable 'value' set but not used [-Wunused-but-set-variable] 1140 | int value; | ^ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.c:1136:5: warning: no previous prototype for function 'rnp_fw_reg_read' [-Wmissing-prototypes] 1136 | int rnp_fw_reg_read(struct rnp_hw *hw, int addr, int sz) | ^ drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.c:1136:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1136 | int rnp_fw_reg_read(struct rnp_hw *hw, int addr, int sz) | ^ | static 9 warnings generated. .. vim +/int +898 drivers/net/ethernet/mucse/rnp/rnp_mbx_fw.h 879 880 static inline void build_set_phy_reg(struct mbx_fw_cmd_req *req, 881 void *cookie, 882 enum PHY_INTERFACE phy_inf, 883 char nr_lane, int reg, int w_data, 884 int recall_qsfp_page) 885 { 886 req->flags = 0; 887 req->opcode = SET_PHY_REG; 888 req->datalen = sizeof(req->set_phy_reg); 889 req->cookie = cookie; 890 req->reply_lo = 0; 891 req->reply_hi = 0; 892 req->set_phy_reg.phy_interface = phy_inf; 893 req->set_phy_reg.nr_lane = nr_lane; 894 req->set_phy_reg.phy_reg_addr = reg; 895 req->set_phy_reg.phy_w_data = w_data; 896 897 if (recall_qsfp_page) > 898 req->set_phy_reg.recall_qsfp_page = 1; 899 else 900 req->set_phy_reg.recall_qsfp_page = 0; 901 } 902 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1509/1509] net/netfilter/ipvs/ip_vs_ctl.c:2480:9: warning: 'ret' may be used uninitialized in this function
by kernel test robot 20 Mar '25

20 Mar '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d54ba3f54612a8622df13d42bc1870048cb63d20 commit: 56ee6566622b8a8f58ec8d99e403d4ba9f29e693 [1509/1509] ipvs: Fix uninit-value in do_ip_vs_set_ctl() config: arm64-randconfig-002-20250320 (https://download.01.org/0day-ci/archive/20250320/202503201839.XDDCG7DI-lkp@…) compiler: aarch64-linux-gcc (GCC) 10.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250320/202503201839.XDDCG7DI-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/202503201839.XDDCG7DI-lkp@intel.com/ Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): net/netfilter/ipvs/ip_vs_ctl.c: In function 'do_ip_vs_set_ctl': >> net/netfilter/ipvs/ip_vs_ctl.c:2480:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized] 2480 | return ret; | ^~~ vim +/ret +2480 net/netfilter/ipvs/ip_vs_ctl.c c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2337 ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2338 static int ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2339 do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len) ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2340 { fc723250c9cb04 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-01-03 2341 struct net *net = sock_net(sk); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2342 int ret; 5fcf0cf6073d4a net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2014-09-03 2343 unsigned char arg[MAX_SET_ARGLEN]; c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2344 struct ip_vs_service_user *usvc_compat; c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2345 struct ip_vs_service_user_kern usvc; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2346 struct ip_vs_service *svc; c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2347 struct ip_vs_dest_user *udest_compat; c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2348 struct ip_vs_dest_user_kern udest; ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2349 struct netns_ipvs *ipvs = net_ipvs(net); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2350 5fcf0cf6073d4a net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2014-09-03 2351 BUILD_BUG_ON(sizeof(arg) > 255); df008c91f83583 net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2012-11-16 2352 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2353 return -EPERM; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2354 04bcef2a83f40c net/netfilter/ipvs/ip_vs_ctl.c Arjan van de Ven 2010-01-04 2355 if (cmd < IP_VS_BASE_CTL || cmd > IP_VS_SO_SET_MAX) 04bcef2a83f40c net/netfilter/ipvs/ip_vs_ctl.c Arjan van de Ven 2010-01-04 2356 return -EINVAL; 5fcf0cf6073d4a net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2014-09-03 2357 if (len != set_arglen[CMDID(cmd)]) { 5fcf0cf6073d4a net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2014-09-03 2358 IP_VS_DBG(1, "set_ctl: len %u != %u\n", 5fcf0cf6073d4a net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2014-09-03 2359 len, set_arglen[CMDID(cmd)]); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2360 return -EINVAL; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2361 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2362 ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2363 if (copy_from_user(arg, user, len) != 0) ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2364 return -EFAULT; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2365 ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2366 /* Handle daemons since they have another lock */ ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2367 if (cmd == IP_VS_SO_SET_STARTDAEMON || ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2368 cmd == IP_VS_SO_SET_STOPDAEMON) { ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2369 struct ip_vs_daemon_user *dm = (struct ip_vs_daemon_user *)arg; ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2370 e0b26cc997d573 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2015-07-26 2371 if (cmd == IP_VS_SO_SET_STARTDAEMON) { e4ff67513096e6 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2015-07-26 2372 struct ipvs_sync_daemon_cfg cfg; e4ff67513096e6 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2015-07-26 2373 e4ff67513096e6 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2015-07-26 2374 memset(&cfg, 0, sizeof(cfg)); 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2375 ret = -EINVAL; 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2376 if (strscpy(cfg.mcast_ifn, dm->mcast_ifn, 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2377 sizeof(cfg.mcast_ifn)) <= 0) e2eda307807970 net/netfilter/ipvs/ip_vs_ctl.c Davide Caratti 2019-11-13 2378 return ret; e4ff67513096e6 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2015-07-26 2379 cfg.syncid = dm->syncid; 6ac121d710697c net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2380 ret = start_sync_thread(ipvs, &cfg, dm->state); e0b26cc997d573 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2015-07-26 2381 } else { b3cf3cbfb57c27 net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2382 ret = stop_sync_thread(ipvs, dm->state); e0b26cc997d573 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2015-07-26 2383 } e2eda307807970 net/netfilter/ipvs/ip_vs_ctl.c Davide Caratti 2019-11-13 2384 return ret; ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2385 } ae1d48b23d5e79 net/netfilter/ipvs/ip_vs_ctl.c Hans Schillstrom 2011-10-11 2386 7926dbfa4bc14e net/netfilter/ipvs/ip_vs_ctl.c Pablo Neira Ayuso 2014-07-31 2387 mutex_lock(&__ip_vs_mutex); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2388 if (cmd == IP_VS_SO_SET_FLUSH) { ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2389 /* Flush the virtual service */ ef7c599d91172d net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2390 ret = ip_vs_flush(ipvs, false); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2391 goto out_unlock; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2392 } else if (cmd == IP_VS_SO_SET_TIMEOUT) { ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2393 /* Set timeout values for (tcp tcpfin udp) */ f1faa1e7495445 net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2394 ret = ip_vs_set_timeout(ipvs, (struct ip_vs_timeout_user *)arg); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2395 goto out_unlock; 56ee6566622b8a net/netfilter/ipvs/ip_vs_ctl.c Peilin Ye 2020-11-04 2396 } else if (!len) { 56ee6566622b8a net/netfilter/ipvs/ip_vs_ctl.c Peilin Ye 2020-11-04 2397 /* No more commands with len == 0 below */ 56ee6566622b8a net/netfilter/ipvs/ip_vs_ctl.c Peilin Ye 2020-11-04 2398 ret = -EINVAL; 56ee6566622b8a net/netfilter/ipvs/ip_vs_ctl.c Peilin Ye 2020-11-04 2399 goto out_unlock; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2400 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2401 c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2402 usvc_compat = (struct ip_vs_service_user *)arg; c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2403 udest_compat = (struct ip_vs_dest_user *)(usvc_compat + 1); c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2404 c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2405 /* We only use the new structs internally, so copy userspace compat c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2406 * structs to extended internal versions */ c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2407 ip_vs_copy_usvc_compat(&usvc, usvc_compat); c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2408 ip_vs_copy_udest_compat(&udest, udest_compat); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2409 ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2410 if (cmd == IP_VS_SO_SET_ZERO) { ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2411 /* if no service address is set, zero counters in all */ c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2412 if (!usvc.fwmark && !usvc.addr.ip && !usvc.port) { c60856c687d601 net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2413 ret = ip_vs_zero_all(ipvs); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2414 goto out_unlock; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2415 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2416 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2417 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2418 if ((cmd == IP_VS_SO_SET_ADD || cmd == IP_VS_SO_SET_EDIT) && 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2419 strnlen(usvc.sched_name, IP_VS_SCHEDNAME_MAXLEN) == 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2420 IP_VS_SCHEDNAME_MAXLEN) { 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2421 ret = -EINVAL; 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2422 goto out_unlock; 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2423 } 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2424 2906f66a5682e5 net/netfilter/ipvs/ip_vs_ctl.c Venkata Mohan Reddy 2010-02-18 2425 /* Check for valid protocol: TCP or UDP or SCTP, even for fwmark!=0 */ 2906f66a5682e5 net/netfilter/ipvs/ip_vs_ctl.c Venkata Mohan Reddy 2010-02-18 2426 if (usvc.protocol != IPPROTO_TCP && usvc.protocol != IPPROTO_UDP && 2906f66a5682e5 net/netfilter/ipvs/ip_vs_ctl.c Venkata Mohan Reddy 2010-02-18 2427 usvc.protocol != IPPROTO_SCTP) { 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2428 pr_err("set_ctl: invalid protocol: %d %pI4:%d\n", 14d5e834f6b366 net/netfilter/ipvs/ip_vs_ctl.c Harvey Harrison 2008-10-31 2429 usvc.protocol, &usvc.addr.ip, 52f96757905bbf net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2018-05-19 2430 ntohs(usvc.port)); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2431 ret = -EFAULT; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2432 goto out_unlock; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2433 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2434 ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2435 /* Lookup the exact service by <protocol, addr, port> or fwmark */ ceec4c38168184 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2013-03-22 2436 rcu_read_lock(); c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2437 if (usvc.fwmark == 0) bb2e2a8c957fd1 net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2438 svc = __ip_vs_service_find(ipvs, usvc.af, usvc.protocol, b18610de9ec272 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2439 &usvc.addr, usvc.port); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2440 else 1ed8b947806155 net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2441 svc = __ip_vs_svc_fwm_find(ipvs, usvc.af, usvc.fwmark); ceec4c38168184 net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2013-03-22 2442 rcu_read_unlock(); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2443 ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2444 if (cmd != IP_VS_SO_SET_ADD c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2445 && (svc == NULL || svc->protocol != usvc.protocol)) { ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2446 ret = -ESRCH; 26c15cfd291f8b net/netfilter/ipvs/ip_vs_ctl.c Julian Anastasov 2010-09-21 2447 goto out_unlock; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2448 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2449 ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2450 switch (cmd) { ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2451 case IP_VS_SO_SET_ADD: ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2452 if (svc != NULL) ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2453 ret = -EEXIST; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2454 else 5060bd8307fcfb net/netfilter/ipvs/ip_vs_ctl.c Eric W. Biederman 2015-09-21 2455 ret = ip_vs_add_service(ipvs, &usvc, &svc); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2456 break; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2457 case IP_VS_SO_SET_EDIT: c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2458 ret = ip_vs_edit_service(svc, &usvc); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2459 break; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2460 case IP_VS_SO_SET_DEL: ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2461 ret = ip_vs_del_service(svc); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2462 if (!ret) ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2463 goto out_unlock; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2464 break; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2465 case IP_VS_SO_SET_ZERO: ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2466 ret = ip_vs_zero_service(svc); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2467 break; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2468 case IP_VS_SO_SET_ADDDEST: c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2469 ret = ip_vs_add_dest(svc, &udest); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2470 break; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2471 case IP_VS_SO_SET_EDITDEST: c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2472 ret = ip_vs_edit_dest(svc, &udest); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2473 break; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2474 case IP_VS_SO_SET_DELDEST: c860c6b1479992 net/ipv4/ipvs/ip_vs_ctl.c Julius Volz 2008-09-02 2475 ret = ip_vs_del_dest(svc, &udest); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2476 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2477 ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2478 out_unlock: 14cc3e2b633bb6 net/ipv4/ipvs/ip_vs_ctl.c Ingo Molnar 2006-03-26 2479 mutex_unlock(&__ip_vs_mutex); ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 @2480 return ret; ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2481 } ^1da177e4c3f41 net/ipv4/ipvs/ip_vs_ctl.c Linus Torvalds 2005-04-16 2482 :::::: The code at line 2480 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org> :::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1509/1509] drivers/dma/pl330.c:2599:15: warning: 'src' may be used uninitialized in this function
by kernel test robot 20 Mar '25

20 Mar '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d54ba3f54612a8622df13d42bc1870048cb63d20 commit: 0299853c014aa0eecf7fb85ac2f1ebd0a9a6ba73 [1509/1509] dmaengine: fix is_slave_direction() return false when DMA_DEV_TO_DEV config: arm64-randconfig-003-20250320 (https://download.01.org/0day-ci/archive/20250320/202503201721.gZeymcpc-lkp@…) compiler: aarch64-linux-gcc (GCC) 10.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250320/202503201721.gZeymcpc-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/202503201721.gZeymcpc-lkp@intel.com/ Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/dma/pl330.c: In function 'pl330_prep_dma_cyclic': >> drivers/dma/pl330.c:2599:15: warning: 'src' may be used uninitialized in this function [-Wmaybe-uninitialized] 2599 | px->src_addr = src; | ~~~~~~~~~~~~~^~~~~ drivers/dma/pl330.c:2657:13: note: 'src' was declared here 2657 | dma_addr_t src; | ^~~ >> drivers/dma/pl330.c:2598:15: warning: 'dst' may be used uninitialized in this function [-Wmaybe-uninitialized] 2598 | px->dst_addr = dst; | ~~~~~~~~~~~~~^~~~~ drivers/dma/pl330.c:2656:13: note: 'dst' was declared here 2656 | dma_addr_t dst; | ^~~ drivers/dma/pl330.c:297: warning: cannot understand function prototype: 'struct pl330_reqcfg ' vim +/src +2599 drivers/dma/pl330.c b3040e40675ec2c Jassi Brar 2010-05-23 2593 b3040e40675ec2c Jassi Brar 2010-05-23 2594 static inline void fill_px(struct pl330_xfer *px, b3040e40675ec2c Jassi Brar 2010-05-23 2595 dma_addr_t dst, dma_addr_t src, size_t len) b3040e40675ec2c Jassi Brar 2010-05-23 2596 { b3040e40675ec2c Jassi Brar 2010-05-23 2597 px->bytes = len; b3040e40675ec2c Jassi Brar 2010-05-23 @2598 px->dst_addr = dst; b3040e40675ec2c Jassi Brar 2010-05-23 @2599 px->src_addr = src; b3040e40675ec2c Jassi Brar 2010-05-23 2600 } b3040e40675ec2c Jassi Brar 2010-05-23 2601 :::::: The code at line 2599 was first introduced by commit :::::: b3040e40675ec2c43542331cd30d4ee3dae797e8 DMA: PL330: Add dma api driver :::::: TO: Jassi Brar <jassi.brar(a)samsung.com> :::::: CC: Dan Williams <dan.j.williams(a)intel.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2045/2045] arch/arm64/kvm/virtcca_cvm.c:810:5: warning: no previous prototype for function 'virtcca_get_tmi_version'
by kernel test robot 20 Mar '25

20 Mar '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 961f596cd0017f5f254fb4b0ab9f5b9975177b84 commit: 86b9cab8c4752eb46e3ec038325aee5686805c69 [2045/2045] VirtCCA: an interface to retrieve the TMI version is added config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20250320/202503201027.i8HE43EJ-lkp@…) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250320/202503201027.i8HE43EJ-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/202503201027.i8HE43EJ-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/arm64/kvm/virtcca_cvm.c:5: In file included from include/linux/kvm_host.h:16: In file included from include/linux/mm.h:2253: 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 + | ~~~~~~~~~~~~~~~~~~~~~~ >> arch/arm64/kvm/virtcca_cvm.c:810:5: warning: no previous prototype for function 'virtcca_get_tmi_version' [-Wmissing-prototypes] 810 | u64 virtcca_get_tmi_version(void) | ^ arch/arm64/kvm/virtcca_cvm.c:810:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 810 | u64 virtcca_get_tmi_version(void) | ^ | static arch/arm64/kvm/virtcca_cvm.c:1274:5: warning: no previous prototype for function 'cvm_arm_smmu_domain_set_kvm' [-Wmissing-prototypes] 1274 | int cvm_arm_smmu_domain_set_kvm(struct device *dev, void *data) | ^ arch/arm64/kvm/virtcca_cvm.c:1274:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1274 | int cvm_arm_smmu_domain_set_kvm(struct device *dev, void *data) | ^ | static 7 warnings generated. vim +/virtcca_get_tmi_version +810 arch/arm64/kvm/virtcca_cvm.c 809 > 810 u64 virtcca_get_tmi_version(void) 811 { 812 u64 res = tmi_version(); 813 814 if (res == SMCCC_RET_NOT_SUPPORTED) 815 return 0; 816 return res; 817 } 818 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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