[ALSA] Add missing FORWARD ioctl

IOCTL32 emulation
Added the missing FORWARD ioctl.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/ioctl32/pcm32.c

@@ -376,6 +376,7 @@ DEFINE_ALSA_IOCTL_ENTRY(pcm_status, pcm_status, SNDRV_PCM_IOCTL_STATUS);
 DEFINE_ALSA_IOCTL_ENTRY(pcm_delay, pcm_sframes_str, SNDRV_PCM_IOCTL_DELAY);
 DEFINE_ALSA_IOCTL_ENTRY(pcm_channel_info, pcm_channel_info, SNDRV_PCM_IOCTL_CHANNEL_INFO);
 DEFINE_ALSA_IOCTL_ENTRY(pcm_rewind, pcm_uframes_str, SNDRV_PCM_IOCTL_REWIND);
+DEFINE_ALSA_IOCTL_ENTRY(pcm_forward, pcm_uframes_str, SNDRV_PCM_IOCTL_FORWARD);
 DEFINE_ALSA_IOCTL_ENTRY(pcm_readi, xferi, SNDRV_PCM_IOCTL_READI_FRAMES);
 DEFINE_ALSA_IOCTL_ENTRY(pcm_writei, xferi, SNDRV_PCM_IOCTL_WRITEI_FRAMES);
 DEFINE_ALSA_IOCTL_ENTRY(pcm_readn, xfern, SNDRV_PCM_IOCTL_READN_FRAMES);
@@ -419,6 +420,7 @@ enum {
 	SNDRV_PCM_IOCTL_DELAY32 = _IOR('A', 0x21, s32),
 	SNDRV_PCM_IOCTL_CHANNEL_INFO32 = _IOR('A', 0x32, struct sndrv_pcm_channel_info32),
 	SNDRV_PCM_IOCTL_REWIND32 = _IOW('A', 0x46, u32),
+	SNDRV_PCM_IOCTL_FORWARD32 = _IOW('A', 0x49, u32),
 	SNDRV_PCM_IOCTL_WRITEI_FRAMES32 = _IOW('A', 0x50, struct sndrv_xferi32),
 	SNDRV_PCM_IOCTL_READI_FRAMES32 = _IOR('A', 0x51, struct sndrv_xferi32),
 	SNDRV_PCM_IOCTL_WRITEN_FRAMES32 = _IOW('A', 0x52, struct sndrv_xfern32),
@@ -450,6 +452,7 @@ struct ioctl32_mapper pcm_mappers[] = {
 	{ SNDRV_PCM_IOCTL_REWIND32, AP(pcm_rewind) },
 	MAP_COMPAT(SNDRV_PCM_IOCTL_RESUME),
 	MAP_COMPAT(SNDRV_PCM_IOCTL_XRUN),
+	{ SNDRV_PCM_IOCTL_FORWARD32, AP(pcm_forward) },
 	{ SNDRV_PCM_IOCTL_WRITEI_FRAMES32, AP(pcm_writei) },
 	{ SNDRV_PCM_IOCTL_READI_FRAMES32, AP(pcm_readi) },
 	{ SNDRV_PCM_IOCTL_WRITEN_FRAMES32, AP(pcm_writen) },