diff options
| author | Ravindra Lokhande <rlokhande@nvidia.com> | 2014-04-16 21:07:59 +0530 |
|---|---|---|
| committer | Mandar Padmawar <mpadmawar@nvidia.com> | 2014-04-28 04:45:19 -0700 |
| commit | 6c2a151e545412a8817af4295cfcee2ddca4efaa (patch) | |
| tree | f3860c42d5b8d1b9cf93aa5a301224eb4cc5b780 /sound | |
| parent | f2ffcb282a5efeab796c66d7999422a8e5fc42d2 (diff) | |
ALSA: compress: add support for 32bit calls in a 64bit kernel
compress offload does not support calls from a 32bit userspace in a
64 bit kernel. This patch adds support for ioctls from a 32bit
userspace in a 64bit kernel
Change-Id: I145f8414d27fbdda534375b607295edde18072f8
Signed-off-by: Ravindra Lokhande <rlokhande@nvidia.com>
Reviewed-on: http://git-master/r/399784
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sumit Bhattacharya <sumitb@nvidia.com>
Reviewed-by: Chandrakanth Gorantla <cgorantla@nvidia.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/compress_offload.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c index 19799931c51d..e7afd062abe6 100644 --- a/sound/core/compress_offload.c +++ b/sound/core/compress_offload.c @@ -839,6 +839,15 @@ static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg) return retval; } +/* support of 32bit userspace on 64bit platforms */ +#ifdef CONFIG_COMPAT +static long snd_compr_ioctl_compat(struct file *file, unsigned int cmd, + unsigned long arg) +{ + return snd_compr_ioctl(file, cmd, arg); +} +#endif + static const struct file_operations snd_compr_file_ops = { .owner = THIS_MODULE, .open = snd_compr_open, @@ -846,6 +855,9 @@ static const struct file_operations snd_compr_file_ops = { .write = snd_compr_write, .read = snd_compr_read, .unlocked_ioctl = snd_compr_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = snd_compr_ioctl_compat, +#endif .mmap = snd_compr_mmap, .poll = snd_compr_poll, }; |