[PATCH] sh: sq: Use the bitmap API when applicable

From: Christophe JAILLET
Date: Sat Jun 25 2022 - 03:40:42 EST


Using the bitmap API is less verbose than hand writing them.
It also improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
I don't cross compile, so this patch is NOT compile-tested.
---
arch/sh/kernel/cpu/sh4/sq.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index a76b94e41e91..c3101427d9a9 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -372,7 +372,6 @@ static struct subsys_interface sq_interface = {
static int __init sq_api_init(void)
{
unsigned int nr_pages = 0x04000000 >> PAGE_SHIFT;
- unsigned int size = (nr_pages + (BITS_PER_LONG - 1)) / BITS_PER_LONG;
int ret = -ENOMEM;

printk(KERN_NOTICE "sq: Registering store queue API.\n");
@@ -382,7 +381,7 @@ static int __init sq_api_init(void)
if (unlikely(!sq_cache))
return ret;

- sq_bitmap = kzalloc(size, GFP_KERNEL);
+ sq_bitmap = bitmap_zalloc(nr_pages, GFP_KERNEL);
if (unlikely(!sq_bitmap))
goto out;

@@ -393,7 +392,7 @@ static int __init sq_api_init(void)
return 0;

out:
- kfree(sq_bitmap);
+ bitmap_free(sq_bitmap);
kmem_cache_destroy(sq_cache);

return ret;
@@ -402,7 +401,7 @@ static int __init sq_api_init(void)
static void __exit sq_api_exit(void)
{
subsys_interface_unregister(&sq_interface);
- kfree(sq_bitmap);
+ bitmap_free(sq_bitmap);
kmem_cache_destroy(sq_cache);
}

--
2.34.1