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authorKees Cook <kees@kernel.org>2026-02-20 23:49:23 -0800
committerKees Cook <kees@kernel.org>2026-02-21 01:02:28 -0800
commit69050f8d6d075dc01af7a5f2f550a8067510366f (patch)
treebb265f94d9dfa7876c06a5d9f88673d496a15341 /kernel/scftorture.c
parentd39a1d7486d98668dd34aaa6732aad7977c45f5a (diff)
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 <kees@kernel.org>
Diffstat (limited to 'kernel/scftorture.c')
-rw-r--r--kernel/scftorture.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/scftorture.c b/kernel/scftorture.c
index d86d2d9c4624..02b3a5d2f0aa 100644
--- a/kernel/scftorture.c
+++ b/kernel/scftorture.c
@@ -350,7 +350,7 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra
struct scf_selector *scfsp = scf_sel_rand(trsp);
if (scfsp->scfs_prim == SCF_PRIM_SINGLE || scfsp->scfs_wait) {
- scfcp = kmalloc(sizeof(*scfcp), GFP_ATOMIC);
+ scfcp = kmalloc_obj(*scfcp, GFP_ATOMIC);
if (!scfcp) {
WARN_ON_ONCE(!IS_ENABLED(CONFIG_KASAN));
atomic_inc(&n_alloc_errs);
@@ -661,7 +661,7 @@ static int __init scf_torture_init(void)
// Worker tasks invoking smp_call_function().
if (nthreads < 0)
nthreads = num_online_cpus();
- scf_stats_p = kcalloc(nthreads, sizeof(scf_stats_p[0]), GFP_KERNEL);
+ scf_stats_p = kzalloc_objs(scf_stats_p[0], nthreads, GFP_KERNEL);
if (!scf_stats_p) {
SCFTORTOUT_ERRSTRING("out of memory");
firsterr = -ENOMEM;