This is a note to let you know that I've just added the patch titled
fix xen_swiotlb_dma_mmap prototype
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fix-xen_swiotlb_dma_mmap-prototype.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From arnd@xxxxxxxx Wed Oct 4 16:35:39 2017
From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Wed, 4 Oct 2017 15:51:29 +0200
Subject: fix xen_swiotlb_dma_mmap prototype
To: gregkh@xxxxxxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, jgross@xxxxxxxx, krzk@xxxxxxxxxx, Arnd Bergmann <arnd@xxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, David Vrabel <david.vrabel@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Andrii Anisov <andrii_anisov@xxxxxxxx>, Oleksandr Dmytryshyn <oleksandr.dmytryshyn@xxxxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx
Message-ID: <20171004135140.3720000-1-arnd@xxxxxxxx>
From: Arnd Bergmann <arnd@xxxxxxxx>
xen_swiotlb_dma_mmap was backported from v4.10, but older
kernels before commit 00085f1efa38 ("dma-mapping: use unsigned long
for dma_attrs") use a different signature:
arm/xen/mm.c:202:10: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.mmap = xen_swiotlb_dma_mmap,
^~~~~~~~~~~~~~~~~~~~
arm/xen/mm.c:202:10: note: (near initialization for 'xen_swiotlb_dma_ops.mmap')
This adapts the patch to the old calling conventions.
Fixes: "swiotlb-xen: implement xen_swiotlb_dma_mmap callback"
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/xen/swiotlb-xen.c | 2 +-
include/xen/swiotlb-xen.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -689,7 +689,7 @@ EXPORT_SYMBOL_GPL(xen_swiotlb_set_dma_ma
int
xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
- unsigned long attrs)
+ struct dma_attrs *attrs)
{
#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
if (__generic_dma_ops(dev)->mmap)
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -62,5 +62,5 @@ xen_swiotlb_set_dma_mask(struct device *
extern int
xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
- unsigned long attrs);
+ struct dma_attrs *attrs);
#endif /* __LINUX_SWIOTLB_XEN_H */
Patches currently in stable-queue which might be from arnd@xxxxxxxx are
queue-4.4/fix-xen_swiotlb_dma_mmap-prototype.patch