[alsa-devel] [PATCH 1/1] ALSA: add dummy function to support shared mmap in nommu Blackfin arch (v2)
From: Cliff Cai cliff.cai@analog.com
v1-v2: - only adding this dummy function in nommu arch
Signed-off-by: Cliff Cai cliff.cai@analog.com Signed-off-by: Bryan Wu cooloney@kernel.org --- sound/core/pcm_native.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index c49b9d9..1e88cde 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3391,6 +3391,14 @@ out: } #endif /* CONFIG_SND_SUPPORT_OLD_API */
+#ifndef CONFIG_MMU +unsigned long dummy_get_unmapped_area(struct file *file, unsigned long addr, + unsigned long len, unsigned long pgoff, unsigned long flags) +{ + return 0; +} +#endif + /* * Register section */ @@ -3407,6 +3415,9 @@ const struct file_operations snd_pcm_f_ops[2] = { .compat_ioctl = snd_pcm_ioctl_compat, .mmap = snd_pcm_mmap, .fasync = snd_pcm_fasync, +#ifndef CONFIG_MMU + .get_unmapped_area = dummy_get_unmapped_area, +#endif }, { .owner = THIS_MODULE, @@ -3419,5 +3430,8 @@ const struct file_operations snd_pcm_f_ops[2] = { .compat_ioctl = snd_pcm_ioctl_compat, .mmap = snd_pcm_mmap, .fasync = snd_pcm_fasync, +#ifndef CONFIG_MMU + .get_unmapped_area = dummy_get_unmapped_area, +#endif } };
On Tue, Sep 2, 2008 at 5:58 AM, Bryan Wu wrote:
From: Cliff Cai cliff.cai@analog.com
v1-v2:
- only adding this dummy function in nommu arch
Signed-off-by: Cliff Cai cliff.cai@analog.com Signed-off-by: Bryan Wu cooloney@kernel.org
sound/core/pcm_native.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index c49b9d9..1e88cde 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3391,6 +3391,14 @@ out: } #endif /* CONFIG_SND_SUPPORT_OLD_API */
+#ifndef CONFIG_MMU +unsigned long dummy_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags)
+{
return 0;
+} +#endif
if you had: #else # define dummy_get_unmapped_area NULL #endif then you could avoid #ifdef in the rest of the file ... -mike
On Tue, Sep 2, 2008 at 9:37 PM, Mike Frysinger vapier.adi@gmail.com wrote:
On Tue, Sep 2, 2008 at 5:58 AM, Bryan Wu wrote:
From: Cliff Cai cliff.cai@analog.com
v1-v2:
- only adding this dummy function in nommu arch
Signed-off-by: Cliff Cai cliff.cai@analog.com Signed-off-by: Bryan Wu cooloney@kernel.org
sound/core/pcm_native.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index c49b9d9..1e88cde 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3391,6 +3391,14 @@ out: } #endif /* CONFIG_SND_SUPPORT_OLD_API */
+#ifndef CONFIG_MMU +unsigned long dummy_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags)
+{
return 0;
+} +#endif
if you had: #else # define dummy_get_unmapped_area NULL #endif then you could avoid #ifdef in the rest of the file ... -mike
Right, I will refresh this patch.
-Bryan
participants (2)
-
Bryan Wu
-
Mike Frysinger