From 69050f8d6d075dc01af7a5f2f550a8067510366f Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 20 Feb 2026 23:49:23 -0800 Subject: treewide: Replace kmalloc with kmalloc_obj for non-scalar types This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook --- kernel/time/timer_migration.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'kernel/time/timer_migration.c') diff --git a/kernel/time/timer_migration.c b/kernel/time/timer_migration.c index 6da9cd562b20..21e72318aeb8 100644 --- a/kernel/time/timer_migration.c +++ b/kernel/time/timer_migration.c @@ -1766,7 +1766,7 @@ static int tmigr_setup_groups(unsigned int cpu, unsigned int node, int i, top = 0, err = 0, start_lvl = 0; bool root_mismatch = false; - stack = kcalloc(tmigr_hierarchy_levels, sizeof(*stack), GFP_KERNEL); + stack = kzalloc_objs(*stack, tmigr_hierarchy_levels, GFP_KERNEL); if (!stack) return -ENOMEM; @@ -2001,7 +2001,8 @@ static int __init tmigr_init(void) */ tmigr_crossnode_level = cpulvl; - tmigr_level_list = kcalloc(tmigr_hierarchy_levels, sizeof(struct list_head), GFP_KERNEL); + tmigr_level_list = kzalloc_objs(struct list_head, + tmigr_hierarchy_levels, GFP_KERNEL); if (!tmigr_level_list) goto err; -- cgit v1.2.3