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Diffstat (limited to '')
| -rw-r--r-- | debian/patches/bugfix/all/usb-dont-create-dma-pools-for-HCD.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/debian/patches/bugfix/all/usb-dont-create-dma-pools-for-HCD.patch b/debian/patches/bugfix/all/usb-dont-create-dma-pools-for-HCD.patch new file mode 100644 index 000000000..197a4fadb --- /dev/null +++ b/debian/patches/bugfix/all/usb-dont-create-dma-pools-for-HCD.patch @@ -0,0 +1,31 @@ +From: Christoph Hellwig <hch@lst.de> +Date: Sun, 11 Aug 2019 10:05:15 +0200 +Subject: usb: don't create dma pools for HCDs with a localmem_pool +Origin: https://git.kernel.org/linus/dd3ecf17ba70a70d2c9ef9ba725281b84f8eef12 + +If the HCD provides a localmem pool we will never use the DMA pools, so +don't create them. + +Fixes: b0310c2f09bb ("USB: use genalloc for USB HCs with local memory") +Signed-off-by: Christoph Hellwig <hch@lst.de> +Link: https://lore.kernel.org/r/20190811080520.21712-2-hch@lst.de +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/usb/core/buffer.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/drivers/usb/core/buffer.c ++++ b/drivers/usb/core/buffer.c +@@ -66,9 +66,9 @@ + char name[16]; + int i, size; + +- if (!IS_ENABLED(CONFIG_HAS_DMA) || +- (!is_device_dma_capable(hcd->self.sysdev) && +- !hcd->localmem_pool)) ++ if (hcd->localmem_pool || ++ !IS_ENABLED(CONFIG_HAS_DMA) || ++ !is_device_dma_capable(hcd->self.sysdev)) + return 0; + + for (i = 0; i < HCD_BUFFER_POOLS; i++) { |