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++) {