From: kernel test robot <lkp@xxxxxxxxx> arch/sparc/mm/srmmu.c:317:42-43: WARNING comparing pointer to 0 arch/sparc/mm/srmmu.c:317:42-43: WARNING comparing pointer to 0 Compare pointer-typed values to NULL rather than 0 Semantic patch information: This makes an effort to choose between !x and x == NULL. !x is used if it has previously been used with the function used to initialize x. This relies on type information. More type information can be obtained using the option -all_includes and the option -I to specify an include path. Generated by: scripts/coccinelle/null/badzero.cocci CC: Sam Ravnborg <sam@xxxxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: kernel test robot <lkp@xxxxxxxxx> --- url: https://github.com/0day-ci/linux/commits/Sam-Ravnborg/sparc32-sunset-sun4m-and-sun4d/20201219-025354 base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next srmmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -314,7 +314,7 @@ pgtable_t pte_alloc_one(struct mm_struct pte_t *ptep; struct page *page; - if ((ptep = pte_alloc_one_kernel(mm)) == 0) + if ((ptep = pte_alloc_one_kernel(mm)) == NULL) return NULL; page = pfn_to_page(__nocache_pa((unsigned long)ptep) >> PAGE_SHIFT); spin_lock(&mm->page_table_lock);
