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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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6
lib/tests/kunit_iov_iter.c
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@@ -387,7 +387,7 @@ static void __init iov_kunit_load_folioq(struct kunit *test,
for (i = 0; i < npages; i++) {
if (folioq_full(p)) {
p->next = kzalloc(sizeof(struct folio_queue), GFP_KERNEL);
p->next = kzalloc_obj(struct folio_queue, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p->next);
folioq_init(p->next, 0);
p->next->prev = p;
@@ -403,7 +403,7 @@ static struct folio_queue *iov_kunit_create_folioq(struct kunit *test)
{
struct folio_queue *folioq;
folioq = kzalloc(sizeof(struct folio_queue), GFP_KERNEL);
folioq = kzalloc_obj(struct folio_queue, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, folioq);
kunit_add_action_or_reset(test, iov_kunit_destroy_folioq, folioq);
folioq_init(folioq, 0);
@@ -565,7 +565,7 @@ static struct xarray *iov_kunit_create_xarray(struct kunit *test)
{
struct xarray *xarray;
xarray = kzalloc(sizeof(struct xarray), GFP_KERNEL);
xarray = kzalloc_obj(struct xarray, GFP_KERNEL);
xa_init(xarray);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xarray);
kunit_add_action_or_reset(test, iov_kunit_destroy_xarray, xarray);