Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
It is less verbose and it improves the semantic.
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
I don't know why commit c506fff3d3a8 ("s390/pci: resize iomap") has turned
this bitmap from a statically defined bitmap to a runtime-allocated one.
Going back to a:
static DECLARE_BITMAP(zpci_iomap_bitmap, ZPCI_IOMAP_ENTRIES);
would slightly simply code.
---
arch/s390/pci/pci.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index bc980fd313d5..b965553de143 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -1059,8 +1059,7 @@ static int zpci_mem_init(void)
if (!zpci_iomap_start)
goto error_iomap;
- zpci_iomap_bitmap = kcalloc(BITS_TO_LONGS(ZPCI_IOMAP_ENTRIES),
- sizeof(*zpci_iomap_bitmap), GFP_KERNEL);
+ zpci_iomap_bitmap = bitmap_zalloc(ZPCI_IOMAP_ENTRIES, GFP_KERNEL);
if (!zpci_iomap_bitmap)
goto error_iomap_bitmap;
@@ -1078,7 +1077,7 @@ static int zpci_mem_init(void)
static void zpci_mem_exit(void)
{
- kfree(zpci_iomap_bitmap);
+ bitmap_free(zpci_iomap_bitmap);
kfree(zpci_iomap_start);
kmem_cache_destroy(zdev_fmb_cache);
}
--
2.34.1
