| commit | 26751de25d255eab7132a8024a893609456996e6 | [log] [tgz] |
|---|---|---|
| author | Robin Murphy <robin.murphy@arm.com> | Tue Jun 16 01:09:29 2020 +0100 |
| committer | Mark Brown <broonie@kernel.org> | Wed Jul 01 22:19:31 2020 +0100 |
| tree | adc12a0981341388ab0b16932168cfe176ff12ca | |
| parent | afe7e36360f4c981fc03ef07a81cb4ce3d567325 [diff] |
spi: bcm2835: Micro-optimise FIFO loops The blind and counted loops are always called with nonzero count, so convert them to do-while loops that lead to slightly more efficient code generation. With GCC 8.3 this shaves off 1-2 instructions per iteration in each case. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/9242863077acf9a64e4b3720e479855b88d19e82.1592261248.git.robin.murphy@arm.com Signed-off-by: Mark Brown <broonie@kernel.org>