ALSA: pcm: Nuke snd_pcm_lib_mmap_vmalloc()

snd_pcm_lib_mmap_vmalloc() was supposed to be implemented with
somewhat special for vmalloc handling, but in the end, this turned to
just the default handler, i.e. NULL.  As the situation has never
changed over decades, let's rip it off.
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

drivers/staging/most/sound/sound.c

@@ -457,7 +457,6 @@ static const struct snd_pcm_ops pcm_ops = {
 	.trigger    = pcm_trigger,
 	.pointer    = pcm_pointer,
 	.page       = snd_pcm_lib_get_vmalloc_page,
-	.mmap       = snd_pcm_lib_mmap_vmalloc,
 };
 
 static int split_arg_list(char *buf, char **card_name, u16 *ch_num,

include/sound/pcm.h

@@ -1342,8 +1342,6 @@ int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_s
 #define snd_pcm_lib_mmap_iomem	NULL
 #endif
 
-#define snd_pcm_lib_mmap_vmalloc NULL
-
 /**
  * snd_pcm_limit_isa_dma_size - Get the max size fitting with ISA DMA transfer
  * @dma: DMA number

sound/drivers/aloop.c

@@ -778,7 +778,6 @@ static const struct snd_pcm_ops loopback_pcm_ops = {
 	.trigger =	loopback_trigger,
 	.pointer =	loopback_pointer,
 	.page =		snd_pcm_lib_get_vmalloc_page,
-	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
 static int loopback_pcm_new(struct loopback *loopback,

sound/drivers/vx/vx_pcm.c

@@ -883,7 +883,6 @@ static const struct snd_pcm_ops vx_pcm_playback_ops = {
 	.trigger =	vx_pcm_trigger,
 	.pointer =	vx_pcm_playback_pointer,
 	.page =		snd_pcm_lib_get_vmalloc_page,
-	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
 
@@ -1105,7 +1104,6 @@ static const struct snd_pcm_ops vx_pcm_capture_ops = {
 	.trigger =	vx_pcm_trigger,
 	.pointer =	vx_pcm_capture_pointer,
 	.page =		snd_pcm_lib_get_vmalloc_page,
-	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
 

sound/firewire/bebob/bebob_pcm.c

@@ -373,7 +373,6 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
 		.page		= snd_pcm_lib_get_vmalloc_page,
-		.mmap		= snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	int err;

sound/firewire/dice/dice-pcm.c

@@ -412,7 +412,6 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 		.pointer   = capture_pointer,
 		.ack       = capture_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
-		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open      = pcm_open,
@@ -425,7 +424,6 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 		.pointer   = playback_pointer,
 		.ack       = playback_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
-		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	unsigned int capture, playback;

sound/firewire/digi00x/digi00x-pcm.c

@@ -352,7 +352,6 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x)
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
 		.page		= snd_pcm_lib_get_vmalloc_page,
-		.mmap		= snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	int err;

sound/firewire/fireface/ff-pcm.c

@@ -383,7 +383,6 @@ int snd_ff_create_pcm_devices(struct snd_ff *ff)
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
 		.page		= snd_pcm_lib_get_vmalloc_page,
-		.mmap		= snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	int err;

sound/firewire/fireworks/fireworks_pcm.c

@@ -397,7 +397,6 @@ int snd_efw_create_pcm_devices(struct snd_efw *efw)
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
 		.page		= snd_pcm_lib_get_vmalloc_page,
-		.mmap		= snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	int err;

sound/firewire/isight.c

@@ -454,7 +454,6 @@ static int isight_create_pcm(struct isight *isight)
 		.trigger   = isight_trigger,
 		.pointer   = isight_pointer,
 		.page      = snd_pcm_lib_get_vmalloc_page,
-		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	int err;

sound/firewire/motu/motu-pcm.c

@@ -363,7 +363,6 @@ int snd_motu_create_pcm_devices(struct snd_motu *motu)
 		.pointer   = capture_pointer,
 		.ack       = capture_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
-		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open      = pcm_open,
@@ -376,7 +375,6 @@ int snd_motu_create_pcm_devices(struct snd_motu *motu)
 		.pointer   = playback_pointer,
 		.ack       = playback_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
-		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	int err;

sound/firewire/oxfw/oxfw-pcm.c

@@ -389,7 +389,6 @@ int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
 		.pointer   = pcm_capture_pointer,
 		.ack       = pcm_capture_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
-		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open      = pcm_open,
@@ -402,7 +401,6 @@ int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
 		.pointer   = pcm_playback_pointer,
 		.ack       = pcm_playback_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
-		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	unsigned int cap = 0;

sound/firewire/tascam/tascam-pcm.c

@@ -279,7 +279,6 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
 		.page		= snd_pcm_lib_get_vmalloc_page,
-		.mmap		= snd_pcm_lib_mmap_vmalloc,
 	};
 	struct snd_pcm *pcm;
 	int err;

sound/mips/sgio2audio.c

@@ -685,7 +685,6 @@ static const struct snd_pcm_ops snd_sgio2audio_playback1_ops = {
 	.trigger =     snd_sgio2audio_pcm_trigger,
 	.pointer =     snd_sgio2audio_pcm_pointer,
 	.page =        snd_pcm_lib_get_vmalloc_page,
-	.mmap =        snd_pcm_lib_mmap_vmalloc,
 };
 
 static const struct snd_pcm_ops snd_sgio2audio_playback2_ops = {
@@ -698,7 +697,6 @@ static const struct snd_pcm_ops snd_sgio2audio_playback2_ops = {
 	.trigger =     snd_sgio2audio_pcm_trigger,
 	.pointer =     snd_sgio2audio_pcm_pointer,
 	.page =        snd_pcm_lib_get_vmalloc_page,
-	.mmap =        snd_pcm_lib_mmap_vmalloc,
 };
 
 static const struct snd_pcm_ops snd_sgio2audio_capture_ops = {
@@ -711,7 +709,6 @@ static const struct snd_pcm_ops snd_sgio2audio_capture_ops = {
 	.trigger =     snd_sgio2audio_pcm_trigger,
 	.pointer =     snd_sgio2audio_pcm_pointer,
 	.page =        snd_pcm_lib_get_vmalloc_page,
-	.mmap =        snd_pcm_lib_mmap_vmalloc,
 };
 
 /*

sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c

@@ -276,7 +276,6 @@ static const struct snd_pcm_ops pdacf_pcm_capture_ops = {
 	.trigger =	pdacf_pcm_trigger,
 	.pointer =	pdacf_pcm_capture_pointer,
 	.page =		snd_pcm_lib_get_vmalloc_page,
-	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
 

sound/soc/codecs/rt5514-spi.c

@@ -268,7 +268,6 @@ static const struct snd_pcm_ops rt5514_spi_pcm_ops = {
 	.hw_params	= rt5514_spi_hw_params,
 	.hw_free	= rt5514_spi_hw_free,
 	.pointer	= rt5514_spi_pcm_pointer,
-	.mmap		= snd_pcm_lib_mmap_vmalloc,
 	.page		= snd_pcm_lib_get_vmalloc_page,
 };
 

sound/usb/6fire/pcm.c

@@ -565,7 +565,6 @@ static const struct snd_pcm_ops pcm_ops = {
 	.trigger = usb6fire_pcm_trigger,
 	.pointer = usb6fire_pcm_pointer,
 	.page = snd_pcm_lib_get_vmalloc_page,
-	.mmap = snd_pcm_lib_mmap_vmalloc,
 };
 
 static void usb6fire_pcm_init_urb(struct pcm_urb *urb,

sound/usb/caiaq/audio.c

@@ -348,7 +348,6 @@ static const struct snd_pcm_ops snd_usb_caiaq_ops = {
 	.trigger =	snd_usb_caiaq_pcm_trigger,
 	.pointer =	snd_usb_caiaq_pcm_pointer,
 	.page =		snd_pcm_lib_get_vmalloc_page,
-	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
 static void check_for_elapsed_periods(struct snd_usb_caiaqdev *cdev,

sound/usb/hiface/pcm.c

@@ -523,7 +523,6 @@ static const struct snd_pcm_ops pcm_ops = {
 	.trigger = hiface_pcm_trigger,
 	.pointer = hiface_pcm_pointer,
 	.page = snd_pcm_lib_get_vmalloc_page,
-	.mmap = snd_pcm_lib_mmap_vmalloc,
 };
 
 static int hiface_pcm_init_urb(struct pcm_urb *urb,

sound/usb/misc/ua101.c

@@ -900,7 +900,6 @@ static const struct snd_pcm_ops capture_pcm_ops = {
 	.trigger = capture_pcm_trigger,
 	.pointer = capture_pcm_pointer,
 	.page = snd_pcm_lib_get_vmalloc_page,
-	.mmap = snd_pcm_lib_mmap_vmalloc,
 };
 
 static const struct snd_pcm_ops playback_pcm_ops = {
@@ -913,7 +912,6 @@ static const struct snd_pcm_ops playback_pcm_ops = {
 	.trigger = playback_pcm_trigger,
 	.pointer = playback_pcm_pointer,
 	.page = snd_pcm_lib_get_vmalloc_page,
-	.mmap = snd_pcm_lib_mmap_vmalloc,
 };
 
 static const struct uac_format_type_i_discrete_descriptor *

sound/usb/pcm.c

@@ -1694,7 +1694,6 @@ static const struct snd_pcm_ops snd_usb_playback_ops = {
 	.trigger =	snd_usb_substream_playback_trigger,
 	.pointer =	snd_usb_pcm_pointer,
 	.page =		snd_pcm_lib_get_vmalloc_page,
-	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
 static const struct snd_pcm_ops snd_usb_capture_ops = {
@@ -1707,7 +1706,6 @@ static const struct snd_pcm_ops snd_usb_capture_ops = {
 	.trigger =	snd_usb_substream_capture_trigger,
 	.pointer =	snd_usb_pcm_pointer,
 	.page =		snd_pcm_lib_get_vmalloc_page,
-	.mmap =		snd_pcm_lib_mmap_vmalloc,
 };
 
 static const struct snd_pcm_ops snd_usb_playback_dev_ops = {