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| author | Ludovic Barre <ludovic.barre@st.com> | 2020-05-26 17:51:03 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-05-29 12:38:00 +0200 |
| commit | 942d5e7bae36153a232102809bdf8b0a5ab110dc (patch) | |
| tree | 2dffcec48f67f7c8b2f8e53bffb376ff8e6cf810 /net/dccp/feat.h | |
| parent | fe8d33bd33d527dee3155d2bccd714a655f37334 (diff) | |
| download | lwn-942d5e7bae36153a232102809bdf8b0a5ab110dc.tar.gz lwn-942d5e7bae36153a232102809bdf8b0a5ab110dc.zip | |
mmc: mmci_sdmmc: fix DMA API warning max segment size
Turning on CONFIG_DMA_API_DEBUG_SG results in the following warning:
WARNING: CPU: 1 PID: 85 at kernel/dma/debug.c:1302
debug_dma_map_sg+0x2a0/0x3cc mmci-pl18x 58005000.sdmmc: DMA-API: mapping sg
segment longer than device claims to support [len=126976] [max=65536]
dma api debug checks and compares the segment size to dma_get_max_seg_size
(dev->dma_parms->max_segment_size), the sdmmc variant has an internal DMA
and should define its max_segment_size constraint to avoid this warning.
This Patch defines the dev->dma_parms->max_segment_size with the constraint
already set for mmc core (host->mmc->max_seg_size).
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Link: https://lore.kernel.org/r/20200526155103.12514-3-ludovic.barre@st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'net/dccp/feat.h')
0 files changed, 0 insertions, 0 deletions