From: Mark Cave-Ayland <[email protected]> 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 <[email protected]> Reviewed-by: Octavian Purdila <[email protected]> Reviewed-by: Alistair Francis <[email protected]> Reviewed-by: Philippe Mathieu-Daudé <[email protected]> Tested-by: Philippe Mathieu-Daudé <[email protected]> Message-ID: <[email protected]> Signed-off-by: Philippe Mathieu-Daudé <[email protected]> --- 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
