From 69050f8d6d075dc01af7a5f2f550a8067510366f Mon Sep 17 00:00:00 2001
From: Kees Cook <kees@kernel.org>
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 <kees@kernel.org>
---
 kernel/livepatch/patch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'kernel/livepatch/patch.c')

diff --git a/kernel/livepatch/patch.c b/kernel/livepatch/patch.c
index 90408500e5a3..1149840cd538 100644
--- a/kernel/livepatch/patch.c
+++ b/kernel/livepatch/patch.c
@@ -179,7 +179,7 @@ static int klp_patch_func(struct klp_func *func)
 			return -EINVAL;
 		}
 
-		ops = kzalloc(sizeof(*ops), GFP_KERNEL);
+		ops = kzalloc_obj(*ops, GFP_KERNEL);
 		if (!ops)
 			return -ENOMEM;
 
-- 
cgit v1.2.3


From bf4afc53b77aeaa48b5409da5c8da6bb4eff7f43 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat, 21 Feb 2026 16:37:42 -0800
Subject: Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/livepatch/patch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'kernel/livepatch/patch.c')

diff --git a/kernel/livepatch/patch.c b/kernel/livepatch/patch.c
index 1149840cd538..3f54a017bbf6 100644
--- a/kernel/livepatch/patch.c
+++ b/kernel/livepatch/patch.c
@@ -179,7 +179,7 @@ static int klp_patch_func(struct klp_func *func)
 			return -EINVAL;
 		}
 
-		ops = kzalloc_obj(*ops, GFP_KERNEL);
+		ops = kzalloc_obj(*ops);
 		if (!ops)
 			return -ENOMEM;
 
-- 
cgit v1.2.3