The patch titled
kfifo: implement missing __kfifo_skip_r()
has been added to the -mm tree. Its filename is
kfifo-implement-missing-__kfifo_skip_r.patch
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------------------------------------------------------
Subject: kfifo: implement missing __kfifo_skip_r()
From: Andrea Righi <arighi@xxxxxxxxxxx>
kfifo_skip() is currently broken, due to the missing of the internal
helper function. Add it.
Signed-off-by: Andrea Righi <arighi@xxxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Acked-by: Stefani Seibold <stefani@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/kfifo.h | 2 ++
kernel/kfifo.c | 9 +++++++++
2 files changed, 11 insertions(+)
diff -puN include/linux/kfifo.h~kfifo-implement-missing-__kfifo_skip_r include/linux/kfifo.h
--- a/include/linux/kfifo.h~kfifo-implement-missing-__kfifo_skip_r
+++ a/include/linux/kfifo.h
@@ -836,6 +836,8 @@ extern void __kfifo_dma_out_finish_r(str
extern unsigned int __kfifo_len_r(struct __kfifo *fifo, size_t recsize);
+extern void __kfifo_skip_r(struct __kfifo *fifo, size_t recsize);
+
extern unsigned int __kfifo_out_peek_r(struct __kfifo *fifo,
void *buf, unsigned int len, size_t recsize);
diff -puN kernel/kfifo.c~kfifo-implement-missing-__kfifo_skip_r kernel/kfifo.c
--- a/kernel/kfifo.c~kfifo-implement-missing-__kfifo_skip_r
+++ a/kernel/kfifo.c
@@ -503,6 +503,15 @@ unsigned int __kfifo_out_r(struct __kfif
}
EXPORT_SYMBOL(__kfifo_out_r);
+void __kfifo_skip_r(struct __kfifo *fifo, size_t recsize)
+{
+ unsigned int n;
+
+ n = __kfifo_peek_n(fifo, recsize);
+ fifo->out += n + recsize;
+}
+EXPORT_SYMBOL(__kfifo_skip_r);
+
int __kfifo_from_user_r(struct __kfifo *fifo, const void __user *from,
unsigned long len, unsigned int *copied, size_t recsize)
{
_
Patches currently in -mm which might be from arighi@xxxxxxxxxxx are
origin.patch
kfifo-implement-missing-__kfifo_skip_r.patch
kfifo-add-kfifo_skip-testcase.patch
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