diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0688-Add-missing-dma_unmap_sg-calls-to-free-relevant-swio.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0688-Add-missing-dma_unmap_sg-calls-to-free-relevant-swio.patch | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0688-Add-missing-dma_unmap_sg-calls-to-free-relevant-swio.patch b/target/linux/bcm27xx/patches-4.19/950-0688-Add-missing-dma_unmap_sg-calls-to-free-relevant-swio.patch deleted file mode 100644 index 0a14126fbd..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0688-Add-missing-dma_unmap_sg-calls-to-free-relevant-swio.patch +++ /dev/null @@ -1,46 +0,0 @@ -From f8554985b77df2dac55f2d7c85e0f0cc3497a1fd Mon Sep 17 00:00:00 2001 -From: Yaroslav Rosomakho <yaroslavros@gmail.com> -Date: Fri, 23 Aug 2019 11:05:51 +0200 -Subject: [PATCH] Add missing dma_unmap_sg calls to free relevant - swiotlb bounce buffers. This prevents DMA leaks. - -Signed-off-by: Yaroslav Rosomakho <yaroslavros@gmail.com> ---- - drivers/mmc/host/bcm2835-mmc.c | 15 +++++++++------ - 1 file changed, 9 insertions(+), 6 deletions(-) - ---- a/drivers/mmc/host/bcm2835-mmc.c -+++ b/drivers/mmc/host/bcm2835-mmc.c -@@ -345,16 +345,17 @@ static void bcm2835_mmc_dma_complete(voi - - host->use_dma = false; - -- if (host->data && !(host->data->flags & MMC_DATA_WRITE)) { -- /* otherwise handled in SDHCI IRQ */ -+ if (host->data) { - dma_chan = host->dma_chan_rxtx; -- dir_data = DMA_FROM_DEVICE; -- -+ if (host->data->flags & MMC_DATA_WRITE) -+ dir_data = DMA_TO_DEVICE; -+ else -+ dir_data = DMA_FROM_DEVICE; - dma_unmap_sg(dma_chan->device->dev, - host->data->sg, host->data->sg_len, - dir_data); -- -- bcm2835_mmc_finish_data(host); -+ if (! (host->data->flags & MMC_DATA_WRITE)) -+ bcm2835_mmc_finish_data(host); - } else if (host->wait_for_dma) { - host->wait_for_dma = false; - tasklet_schedule(&host->finish_tasklet); -@@ -540,6 +541,8 @@ static void bcm2835_mmc_transfer_dma(str - spin_unlock_irqrestore(&host->lock, flags); - dmaengine_submit(desc); - dma_async_issue_pending(dma_chan); -+ } else { -+ dma_unmap_sg(dma_chan->device->dev, host->data->sg, len, dir_data); - } - - } |