[alsa-devel] [PATCH 11/12] ALSA: korg1212: Add __force annotation to cast in user-copy callbacks

[Takashi Iwai]

The user-copy callbacks in korg1212 driver contain the explicit cast
from a user pointer to a kernel pointer, but they missed __force
prefix.  It's mandatory for converting between them.

Spotted by sparse, a warning like:
  sound/pci/korg1212/korg1212.c:1329:33: warning: cast removes address space of expression

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/korg1212/korg1212.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 4206ba44d8bb..4e189a93f475 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -1326,7 +1326,7 @@ static int snd_korg1212_copy_to(struct snd_pcm_substream *substream,
 		}
 #endif
 		if (in_kernel)
-			memcpy((void *)dst, src, size);
+			memcpy((__force void *)dst, src, size);
 		else if (copy_to_user(dst, src, size))
 			return -EFAULT;
 		src++;
@@ -1365,7 +1365,7 @@ static int snd_korg1212_copy_from(struct snd_pcm_substream *substream,
 		}
 #endif
 		if (in_kernel)
-			memcpy((void *)dst, src, size);
+			memcpy(dst, (__force void *)src, size);
 		else if (copy_from_user(dst, src, size))
 			return -EFAULT;
 		dst++;
-- 
2.18.0