[PATCH 0/5] bitmap: align bitmap_find_next_zero_area_off() output with the rest of the API

From: Yury Norov

Date: Wed Jul 08 2026 - 22:03:39 EST


Bitmap search functions return a value greater than or equal to nbits when
no suitable bits are found. bitmap_find_next_zero_area_off() is an
exception: it returns a value greater than nbits.

Align the function with the rest of the API and adjust the affected callers
accordingly.

Patches 1-4 are sent only to their respective maintainers and mailing
lists. Patch 5 and the cover letter are sent to all recipients.

On top of -next. I plan to carry the series with bitmap-for-next.

Yury Norov (5):
ARM: dma-mapping: Treat bitmap size as allocation failure
powerpc/msi: Treat bitmap size as allocation failure
crypto: ccp: Treat bitmap size as allocation failure
media: s5p-mfc: Treat bitmap size as allocation failure
bitmap: Return size when no zero area is found

arch/arm/mm/dma-mapping.c | 4 ++--
arch/powerpc/sysdev/msi_bitmap.c | 2 +-
drivers/crypto/ccp/ccp-dev-v3.c | 2 +-
drivers/crypto/ccp/ccp-dev-v5.c | 6 +++---
drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr.c | 2 +-
include/linux/bitmap.h | 3 +++
lib/bitmap.c | 10 ++++------
7 files changed, 15 insertions(+), 14 deletions(-)

--
2.53.0