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| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2025-07-11 21:46:34 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2025-07-15 00:25:13 +0200 |
| commit | 28a579a349015a7ed5a57cb4bdcdc5c60ba6b6fc (patch) | |
| tree | bca63941a80210f640c0c0eea7362435c3ba64c3 /scripts/qapi/parser.py | |
| parent | 9d6df740ec5e43bd8e4521901aca95f9780e524a (diff) | |
| download | qemu-28a579a349015a7ed5a57cb4bdcdc5c60ba6b6fc.zip qemu-28a579a349015a7ed5a57cb4bdcdc5c60ba6b6fc.tar.gz qemu-28a579a349015a7ed5a57cb4bdcdc5c60ba6b6fc.tar.bz2 | |
esp.c: only call dma_memory_write function if transfer length is non-zero
In the cases where mixed DMA/non-DMA transfers are used or no data is
available, it is possible for the calculated transfer length to be zero.
Only call the dma_memory_write function where the transfer length is
non-zero to avoid invoking the DMA engine for a zero length transfer
which can have side-effects (along with generating additional tracing
noise).
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250711204636.542964-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'scripts/qapi/parser.py')
0 files changed, 0 insertions, 0 deletions