tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 053a6b6f8e4c86200cdb20bc80c063c3bb119859 commit: 426b9efea56f9b065151d165caab2ebd32906505 [2600/2600] mm: Add sysctl to clear free list pages config: arm64-randconfig-r133-20241227 (https://download.01.org/0day-ci/archive/20241228/202412280329.gvMxH5vy-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20241228/202412280329.gvMxH5vy-lkp@i...)

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@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202412280329.gvMxH5vy-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)

...

mm/clear_freelist_page.c:141:50: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void * @@ got void [noderef] __user *buffer @@

mm/clear_freelist_page.c:141:50: sparse: expected void * mm/clear_freelist_page.c:141:50: sparse: got void [noderef] __user *buffer

...

mm/clear_freelist_page.c:155:36: sparse: sparse: incorrect type in initializer (incompatible argument 3 (different address spaces)) @@ expected int ( [usertype] *proc_handler )( ... ) @@ got int ( * )( ... ) @@

mm/clear_freelist_page.c:155:36: sparse: expected int ( [usertype] *proc_handler )( ... ) mm/clear_freelist_page.c:155:36: sparse: got int ( * )( ... )

vim +141 mm/clear_freelist_page.c

133 134 static int sysctl_clear_freelist_handler(struct ctl_table *table, int write, 135 void __user *buffer, size_t *lenp, loff_t *ppos) 136 { 137 int ret; 138 int val; 139 140 table->data = &val;

141 ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);

142 143 if (!ret && write) 144 clear_freelist_pages(); 145 146 return ret; 147 } 148 149 static struct ctl_table clear_freelist_table[] = { 150 { 151 .procname = "clear_freelist_pages", 152 .data = NULL, 153 .maxlen = sizeof(int), 154 .mode = 0200,

155 .proc_handler = &sysctl_clear_freelist_handler,

156 .extra1 = SYSCTL_ONE, 157 .extra2 = SYSCTL_ONE, 158 }, 159 { } 160 }; 161