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| author | Anatol Pomozov <anatol.pomozov@gmail.com> | 2014-10-17 12:43:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-30 09:35:13 -0700 |
| commit | aff3c48530a9bd58edf42d94684234244c957a6b (patch) | |
| tree | 3de8608122ecc9e22c64942fb453ecb55bd07d5d /sound | |
| parent | 9f81e4deb5a6807fc2495e61ce080df7de51e3b8 (diff) | |
| download | lwn-aff3c48530a9bd58edf42d94684234244c957a6b.tar.gz lwn-aff3c48530a9bd58edf42d94684234244c957a6b.zip | |
ALSA: pcm: use the same dma mmap codepath both for arm and arm64
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>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/pcm_native.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index f92818155958..175dca44c97e 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3197,7 +3197,7 @@ static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = { #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 |