[PATCH] ALSA: core: Remove unused copy_from_user_toio

[linux@xxxxxxxxxxx]

From: "Dr. David Alan Gilbert" <linux@xxxxxxxxxxx>

copy_from_user_toio() has been unused since commit
ce2d8ed8d809 ("ASoC: qcom: Convert to generic PCM copy ops")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@xxxxxxxxxxx>
---
 include/sound/core.h |  1 -
 sound/core/memory.c  | 20 --------------------
 2 files changed, 21 deletions(-)

diff --git a/include/sound/core.h b/include/sound/core.h
index 1f3f5dccd736..b5a6f3d2bff5 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -267,7 +267,6 @@ static inline int snd_minor_info_oss_init(void) { return 0; }
 /* memory.c */
 
 int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
-int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count);
 
 /* init.c */
 
diff --git a/sound/core/memory.c b/sound/core/memory.c
index 2d2d0094c897..8222a851da87 100644
--- a/sound/core/memory.c
+++ b/sound/core/memory.c
@@ -63,26 +63,6 @@ int copy_to_iter_fromio(struct iov_iter *dst, const void __iomem *src,
 }
 EXPORT_SYMBOL(copy_to_iter_fromio);
 
-/**
- * copy_from_user_toio - copy data from user-space to mmio-space
- * @dst: the destination pointer on mmio-space
- * @src: the source pointer on user-space
- * @count: the data size to copy in bytes
- *
- * Copies the data from user-space to mmio-space.
- *
- * Return: Zero if successful, or non-zero on failure.
- */
-int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count)
-{
-	struct iov_iter iter;
-
-	if (import_ubuf(ITER_SOURCE, (void __user *)src, count, &iter))
-		return -EFAULT;
-	return copy_from_iter_toio((void __iomem *)dst, &iter, count);
-}
-EXPORT_SYMBOL(copy_from_user_toio);
-
 /**
  * copy_from_iter_toio - copy data from iov_iter to mmio-space
  * @dst: the destination pointer on mmio-space
-- 
2.47.0