diff mbox series

[06/34] sparc: fix opencoded find_and_set_bit() in alloc_msi()

Message ID 20231118155105.25678-7-yury.norov@gmail.com
State New
Headers
Series biops: add atomig find_bit() operations |

Commit Message

Yury Norov Nov. 18, 2023, 3:50 p.m. UTC 
  alloc_msi() opencodes find_and_clear_bit(). Switch it to using the
dedicated function, and make an nice one-liner.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
 arch/sparc/kernel/pci_msi.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c
index fc7402948b7b..91105c788d1d 100644
--- a/arch/sparc/kernel/pci_msi.c
+++ b/arch/sparc/kernel/pci_msi.c
@@ -96,14 +96,9 @@  static u32 pick_msiq(struct pci_pbm_info *pbm)
 
 static int alloc_msi(struct pci_pbm_info *pbm)
 {
-	int i;
-
-	for (i = 0; i < pbm->msi_num; i++) {
-		if (!test_and_set_bit(i, pbm->msi_bitmap))
-			return i + pbm->msi_first;
-	}
+	int i = find_and_set_bit(pbm->msi_bitmap, pbm->msi_num);
 
-	return -ENOENT;
+	return i < pbm->msi_num ? i + pbm->msi_first : -ENOENT;
 }
 
 static void free_msi(struct pci_pbm_info *pbm, int msi_num)