On Mon, 9 Jul 2018 13:20 Marek Szyprowski, m.szyprowski@samsung.com wrote:
cma_alloc() function doesn't really support gfp flags other than __GFP_NOWARN, so convert gfp_mask parameter to boolean no_warn parameter.
This will help to avoid giving false feeling that this function supports standard gfp flags and callers can pass __GFP_ZERO to get zeroed buffer, what has already been an issue: see commit dd65a941f6ba ("arm64: dma-mapping: clear buffers allocated with FORCE_CONTIGUOUS flag").
Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com
Acked-by: Michał Nazarewicz mina86@mina86.com
(Adding Acked-by on a phone is surprisingly hard).
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arch/powerpc/kvm/book3s_hv_builtin.c | 2 +- drivers/s390/char/vmcp.c | 2 +- drivers/staging/android/ion/ion_cma_heap.c | 2 +- include/linux/cma.h | 2 +- kernel/dma/contiguous.c | 3 ++- mm/cma.c | 8 ++++---- mm/cma_debug.c | 2 +- 7 files changed, 11 insertions(+), 10 deletions(-)