From: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
Rather than operate on fifo->head directly, introduce a new head
variable which is set to the value of fifo->head and use it instead.
This is to allow future adjustment of the head position within the
internal FIFO buffer.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
Reviewed-by: Octavian Purdila <ta...@google.com>
Reviewed-by: Alistair Francis <alistair.fran...@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Tested-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Message-ID: <20240828122258.928947-3-mark.cave-ayl...@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
util/fifo8.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/util/fifo8.c b/util/fifo8.c
index 61bce9d9a0..5faa814a6e 100644
--- a/util/fifo8.c
+++ b/util/fifo8.c
@@ -75,11 +75,12 @@ static const uint8_t *fifo8_peekpop_bufptr(Fifo8 *fifo,
uint32_t max,
uint32_t *numptr, bool do_pop)
{
uint8_t *ret;
- uint32_t num;
+ uint32_t num, head;
assert(max > 0 && max <= fifo->num);
- num = MIN(fifo->capacity - fifo->head, max);
- ret = &fifo->data[fifo->head];
+ head = fifo->head;
+ num = MIN(fifo->capacity - head, max);
+ ret = &fifo->data[head];
if (do_pop) {
fifo->head += num;
--
2.45.2
