[GIT PULL] last minute dma-mapping fixes for Linux 6.19

From: Marek Szyprowski

Date: Fri Jan 30 2026 - 08:45:13 EST


The following changes since commit c6ccd098807483762ccd726e1498bac5a71d0005:

dma/pool: Avoid allocating redundant pools (2026-01-14 11:00:00 +0100)

are available in the Git repository at:

https://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux.git tags/dma-mapping-6.19-2026-01-30

for you to fetch changes up to 56c430c7f06d838fe3b2077dbbc4cc0bf992312b:

dma/pool: distinguish between missing and exhausted atomic pools (2026-01-29 10:23:45 +0100)

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dma-mapping fixes for Linux 6.19

- important fix for ARM 32-bit based systems using cma= kernel parameter
(Oreoluwa Babatunde)
- a fix for the corner case of the DMA atomic pool based allocations
(Sai Sree Kartheek Adivi)

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Oreoluwa Babatunde (1):
of: reserved_mem: Allow reserved_mem framework detect "cma=" kernel param

Sai Sree Kartheek Adivi (1):
dma/pool: distinguish between missing and exhausted atomic pools

drivers/of/of_reserved_mem.c | 19 +++++++++++++++++--
include/linux/cma.h | 9 +++++++++
kernel/dma/contiguous.c | 16 ++++++++++------
kernel/dma/pool.c | 7 ++++++-
4 files changed, 42 insertions(+), 9 deletions(-)

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Thanks!

Best regards
Marek Szyprowski, PhD
Samsung R&D Institute Poland