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treewide: Replace kmalloc with kmalloc_obj for non-scalar types

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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>
This commit is contained in:
Kees Cook
2026-02-20 23:49:23 -08:00
parent d39a1d7486
commit 69050f8d6d
8016 changed files with 20055 additions and 20913 deletions
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9
net/unix/af_unix.c
View File

@@ -3798,14 +3798,13 @@ static int __net_init unix_net_init(struct net *net)
goto err_sysctl;
#endif
net->unx.table.locks = kvmalloc_array(UNIX_HASH_SIZE,
sizeof(spinlock_t), GFP_KERNEL);
net->unx.table.locks = kvmalloc_objs(spinlock_t, UNIX_HASH_SIZE,
GFP_KERNEL);
if (!net->unx.table.locks)
goto err_proc;
net->unx.table.buckets = kvmalloc_array(UNIX_HASH_SIZE,
sizeof(struct hlist_head),
GFP_KERNEL);
net->unx.table.buckets = kvmalloc_objs(struct hlist_head,
UNIX_HASH_SIZE, GFP_KERNEL);
if (!net->unx.table.buckets)
goto free_locks;