[PATCH 1/1] lib: simplify sbi_fifo_inplace_update()

[Heinrich Schuchardt]

Don't assign an unused value to variable index.

Use operator '-=' where applicable.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 lib/sbi/sbi_fifo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/sbi/sbi_fifo.c b/lib/sbi/sbi_fifo.c
index 2a5c012..b2395f3 100644
--- a/lib/sbi/sbi_fifo.c
+++ b/lib/sbi/sbi_fifo.c
@@ -118,7 +118,7 @@ bool sbi_fifo_reset(struct sbi_fifo *fifo)
 int sbi_fifo_inplace_update(struct sbi_fifo *fifo, void *in,
 			    int (*fptr)(void *in, void *data))
 {
-	int i, index = 0;
+	int i, index;
 	int ret = SBI_FIFO_UNCHANGED;
 	void *entry;

@@ -135,7 +135,7 @@ int sbi_fifo_inplace_update(struct sbi_fifo *fifo, void *in,
 	for (i = 0; i < fifo->avail; i++) {
 		index = fifo->tail + i;
 		if (index >= fifo->num_entries)
-			index = index - fifo->num_entries;
+			index -= fifo->num_entries;
 		entry = (void *)fifo->queue + (u32)index * fifo->entry_size;
 		ret = fptr(in, entry);

--
2.30.2