| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.16 079/127] ALSA: pcm: use the same dma mmap codepath both for arm and arm64 | Date | Tue, 28 Oct 2014 11:35:14 +0800 |
| |
3.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Anatol Pomozov <anatol.pomozov@gmail.com>
commit a011e213f3700233ed2a676f1ef0a74a052d7162 upstream.
This avoids following kernel crash when try to playback on arm64
[ 107.497203] [<ffffffc00046b310>] snd_pcm_mmap_data_fault+0x90/0xd4 [ 107.503405] [<ffffffc0001541ac>] __do_fault+0xb0/0x498 [ 107.508565] [<ffffffc0001576a0>] handle_mm_fault+0x224/0x7b0 [ 107.514246] [<ffffffc000092640>] do_page_fault+0x11c/0x310 [ 107.519738] [<ffffffc000081100>] do_mem_abort+0x38/0x98
Tested: backported to 3.14 and tried to playback on arm64 machine
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- sound/core/pcm_native.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3190,7 +3190,7 @@ static const struct vm_operations_struct #ifndef ARCH_HAS_DMA_MMAP_COHERENT /* This should be defined / handled globally! */ -#ifdef CONFIG_ARM +#if defined(CONFIG_ARM) || defined(CONFIG_ARM64) #define ARCH_HAS_DMA_MMAP_COHERENT #endif #endif
|