diff options
author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2024-08-28 13:22:51 +0100 |
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committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2024-09-13 20:11:13 +0200 |
commit | 0b73afec0e0f9230ba6f16a2d667dc214680b4f0 (patch) | |
tree | 30ae78cddc166fc5d30473bc0be2445429b72b4c /util | |
parent | f9309d965a70c12244c84d034420c036d18691ce (diff) |
fifo8: introduce head variable for fifo8_peekpop_bufptr()
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-ayland@ilande.co.uk>
Reviewed-by: Octavian Purdila <tavip@google.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240828122258.928947-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'util')
-rw-r--r-- | util/fifo8.c | 7 |
1 files 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; |