[PATCH v2 01/25] iov_iter: Export import_ubuf()

From: Takashi Iwai
Date: Tue Aug 15 2023 - 15:02:47 EST


Export import_ubuf() to be used in sound subsystem for generic memory
handling as Linus suggested. It's used for constructing an iov_iter
of a single segment user-space copy for PCM data.

Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/CAHk-=wh-mUL6mp4chAc6E_UjwpPLyCPRCJK+iB4ZMD2BqjwGHA@xxxxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
lib/iov_iter.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index e4dc809d1075..3743bbcbbb89 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -1544,6 +1544,7 @@ int import_ubuf(int rw, void __user *buf, size_t len, struct iov_iter *i)
iov_iter_ubuf(i, rw, buf, len);
return 0;
}
+EXPORT_SYMBOL_GPL(import_ubuf);

/**
* iov_iter_restore() - Restore a &struct iov_iter to the same state as when
--
2.35.3