The patch titled Subject: ia64: mca_drv: fix incorrect array size calculation has been added to the -mm tree. Its filename is ia64-mca_drv-fix-incorrect-array-size-calculation.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/ia64-mca_drv-fix-incorrect-array-size-calculation.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/ia64-mca_drv-fix-incorrect-array-size-calculation.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Arnd Bergmann <arnd@xxxxxxxx> Subject: ia64: mca_drv: fix incorrect array size calculation gcc points out a mistake in the mca driver that goes back to before the git history: arch/ia64/kernel/mca_drv.c: In function 'init_record_index_pools': arch/ia64/kernel/mca_drv.c:346:54: error: expression does not compute the number of elements in this array; element typ e is 'int', not 'size_t' {aka 'long unsigned int'} [-Werror=sizeof-array-div] 346 | for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++) | ^ This is the same as sizeof(size_t), which is two shorter than the actual array. Use the ARRAY_SIZE() macro to get the correct calculation instead. Link: https://lkml.kernel.org/r/20210514214123.875971-1-arnd@xxxxxxxxxx Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/ia64/kernel/mca_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/ia64/kernel/mca_drv.c~ia64-mca_drv-fix-incorrect-array-size-calculation +++ a/arch/ia64/kernel/mca_drv.c @@ -343,7 +343,7 @@ init_record_index_pools(void) /* - 2 - */ sect_min_size = sal_log_sect_min_sizes[0]; - for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++) + for (i = 1; i < ARRAY_SIZE(sal_log_sect_min_sizes); i++) if (sect_min_size > sal_log_sect_min_sizes[i]) sect_min_size = sal_log_sect_min_sizes[i]; _ Patches currently in -mm which might be from arnd@xxxxxxxx are mm-shuffle-fix-section-mismatch-warning.patch ia64-mca_drv-fix-incorrect-array-size-calculation.patch