This is a note to let you know that I've just added the patch titled
[media] media: s5p-mfc: fix mmap support for 64bit arch
to the 3.19-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:
media-s5p-mfc-fix-mmap-support-for-64bit-arch.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 05b676ab42f624425d5f6519276e506b812fa058 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Date: Wed, 4 Mar 2015 05:55:21 -0800
Subject: [media] media: s5p-mfc: fix mmap support for 64bit arch
From: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
commit 05b676ab42f624425d5f6519276e506b812fa058 upstream.
TASK_SIZE is depends on the systems architecture (32 or 64 bits) and it
should not be used for defining offset boundary for mmaping buffers for
CAPTURE and OUTPUT queues. This patch fixes support for MMAP calls on
the CAPTURE queue on 64bit architectures (like ARM64).
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/platform/s5p-mfc/s5p_mfc_common.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
@@ -29,7 +29,7 @@
/* Offset base used to differentiate between CAPTURE and OUTPUT
* while mmaping */
-#define DST_QUEUE_OFF_BASE (TASK_SIZE / 2)
+#define DST_QUEUE_OFF_BASE (1 << 30)
#define MFC_BANK1_ALLOC_CTX 0
#define MFC_BANK2_ALLOC_CTX 1
Patches currently in stable-queue which might be from m.szyprowski@xxxxxxxxxxx are
queue-3.19/media-s5p-mfc-fix-mmap-support-for-64bit-arch.patch
queue-3.19/mm-page_alloc.c-call-kernel_map_pages-in-unset_migrateype_isolate.patch
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