[tree-wide] finally take no_llseek out

no_llseek had been defined to NULL two years ago, in commit 868941b
("fs: remove no_llseek")

To quote that commit,

  At -rc1 we'll need do a mechanical removal of no_llseek -

  git grep -l -w no_llseek | grep -v porting.rst | while read i; do
    sed -i '/\<no_llseek\>/d' $i
  done

  would do it.

Unfortunately, that hadn't been done.  Linus, could you do that now, so
that we could finally put that thing to rest? All instances are of the
form
    .llseek = no_llseek,
so it's obviously safe.

sound/core/control.c

@@ -2298,7 +2298,6 @@ static const struct file_operations snd_ctl_f_ops =
 	.read =		snd_ctl_read,
 	.open =		snd_ctl_open,
 	.release =	snd_ctl_release,
-	.llseek =	no_llseek,
 	.poll =		snd_ctl_poll,
 	.unlocked_ioctl =	snd_ctl_ioctl,
 	.compat_ioctl =	snd_ctl_ioctl_compat,

sound/core/oss/mixer_oss.c

@@ -426,7 +426,6 @@ static const struct file_operations snd_mixer_oss_f_ops =
 	.owner =	THIS_MODULE,
 	.open =		snd_mixer_oss_open,
 	.release =	snd_mixer_oss_release,
-	.llseek =	no_llseek,
 	.unlocked_ioctl =	snd_mixer_oss_ioctl,
 	.compat_ioctl =	snd_mixer_oss_ioctl_compat,
 };

sound/core/oss/pcm_oss.c

@@ -3126,7 +3126,6 @@ static const struct file_operations snd_pcm_oss_f_reg =
 	.write =	snd_pcm_oss_write,
 	.open =		snd_pcm_oss_open,
 	.release =	snd_pcm_oss_release,
-	.llseek =	no_llseek,
 	.poll =		snd_pcm_oss_poll,
 	.unlocked_ioctl =	snd_pcm_oss_ioctl,
 	.compat_ioctl =	snd_pcm_oss_ioctl_compat,

sound/core/pcm_native.c

@@ -4126,7 +4126,6 @@ const struct file_operations snd_pcm_f_ops[2] = {
 		.write_iter =		snd_pcm_writev,
 		.open =			snd_pcm_playback_open,
 		.release =		snd_pcm_release,
-		.llseek =		no_llseek,
 		.poll =			snd_pcm_poll,
 		.unlocked_ioctl =	snd_pcm_ioctl,
 		.compat_ioctl = 	snd_pcm_ioctl_compat,
@@ -4140,7 +4139,6 @@ const struct file_operations snd_pcm_f_ops[2] = {
 		.read_iter =		snd_pcm_readv,
 		.open =			snd_pcm_capture_open,
 		.release =		snd_pcm_release,
-		.llseek =		no_llseek,
 		.poll =			snd_pcm_poll,
 		.unlocked_ioctl =	snd_pcm_ioctl,
 		.compat_ioctl = 	snd_pcm_ioctl_compat,

sound/core/rawmidi.c

@@ -1848,7 +1848,6 @@ static const struct file_operations snd_rawmidi_f_ops = {
 	.write =	snd_rawmidi_write,
 	.open =		snd_rawmidi_open,
 	.release =	snd_rawmidi_release,
-	.llseek =	no_llseek,
 	.poll =		snd_rawmidi_poll,
 	.unlocked_ioctl =	snd_rawmidi_ioctl,
 	.compat_ioctl =	snd_rawmidi_ioctl_compat,

sound/core/seq/seq_clientmgr.c

@@ -2715,7 +2715,6 @@ static const struct file_operations snd_seq_f_ops =
 	.write =	snd_seq_write,
 	.open =		snd_seq_open,
 	.release =	snd_seq_release,
-	.llseek =	no_llseek,
 	.poll =		snd_seq_poll,
 	.unlocked_ioctl =	snd_seq_ioctl,
 	.compat_ioctl =	snd_seq_ioctl_compat,

sound/core/timer.c

@@ -2285,7 +2285,6 @@ static const struct file_operations snd_timer_f_ops =
 	.read =		snd_timer_user_read,
 	.open =		snd_timer_user_open,
 	.release =	snd_timer_user_release,
-	.llseek =	no_llseek,
 	.poll =		snd_timer_user_poll,
 	.unlocked_ioctl =	snd_timer_user_ioctl,
 	.compat_ioctl =	snd_timer_user_ioctl_compat,

sound/oss/dmasound/dmasound_core.c

@@ -380,7 +380,6 @@ static long mixer_unlocked_ioctl(struct file *file, u_int cmd, u_long arg)
 static const struct file_operations mixer_fops =
 {
 	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
 	.unlocked_ioctl	= mixer_unlocked_ioctl,
 	.compat_ioctl	= compat_ptr_ioctl,
 	.open		= mixer_open,
@@ -1154,7 +1153,6 @@ static long sq_unlocked_ioctl(struct file *file, u_int cmd, u_long arg)
 static const struct file_operations sq_fops =
 {
 	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
 	.write		= sq_write,
 	.poll		= sq_poll,
 	.unlocked_ioctl	= sq_unlocked_ioctl,
@@ -1350,7 +1348,6 @@ static ssize_t state_read(struct file *file, char __user *buf, size_t count,
 
 static const struct file_operations state_fops = {
 	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
 	.read		= state_read,
 	.open		= state_open,
 	.release	= state_release,

sound/soc/intel/avs/debugfs.c

@@ -68,7 +68,6 @@ static ssize_t fw_regs_read(struct file *file, char __user *to, size_t count, lo
 static const struct file_operations fw_regs_fops = {
 	.open = simple_open,
 	.read = fw_regs_read,
-	.llseek = no_llseek,
 };
 
 static ssize_t debug_window_read(struct file *file, char __user *to, size_t count, loff_t *ppos)
@@ -93,7 +92,6 @@ static ssize_t debug_window_read(struct file *file, char __user *to, size_t coun
 static const struct file_operations debug_window_fops = {
 	.open = simple_open,
 	.read = debug_window_read,
-	.llseek = no_llseek,
 };
 
 static ssize_t probe_points_read(struct file *file, char __user *to, size_t count, loff_t *ppos)
@@ -170,7 +168,6 @@ static const struct file_operations probe_points_fops = {
 	.open = simple_open,
 	.read = probe_points_read,
 	.write = probe_points_write,
-	.llseek = no_llseek,
 };
 
 static ssize_t probe_points_disconnect_write(struct file *file, const char __user *from,