[PATCH v7 43/49] x86/resctrl: Prefer alloc(sizeof(*foo)) idiom in rdt_init_fs_context()

James Morse
2025-02-28T20:02:34Z

From: Dave Martin <Dave.Martin@arm.com>

rdt_init_fs_context() sizes a typed allocation using an explicit
sizeof(type) expression, which checkpatch.pl complains about.

Since this code is about to be factored out and made generic, this
is a good opportunity to fix the code to size the allocation based
on the target pointer instead, to reduce the chance of future mis-
maintenance.

Fix it.

No functional change.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
---
Changes since v6:
* This patch is new.
---
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index f03432e1b1f6..0976cee041c2 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -2929,7 +2929,7 @@ static int rdt_init_fs_context(struct fs_context *fc)
{
struct rdt_fs_context *ctx;

- ctx = kzalloc(sizeof(struct rdt_fs_context), GFP_KERNEL);
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;

--
2.39.5