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| author | Gwendal Grignou <gwendal@chromium.org> | 2019-03-11 16:07:55 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-03-26 04:42:56 -0700 |
| commit | ac77140b7f4f42075d2377fc9d956a636b05aacf (patch) | |
| tree | c64c6a30916ff741a2ab235141f7bd071cd54483 /chip/stm32/dma.c | |
| parent | bb266fc26fc05d4ab22de6ad7bce5b477c9f9140 (diff) | |
| download | chrome-ec-ac77140b7f4f42075d2377fc9d956a636b05aacf.tar.gz | |
common: bit change 1 << constants with BIT(constants)
Mechanical replacement of bit operation where operand is a constant.
More bit operation exist, but prone to errors.
Reveal a bug in npcx:
chip/npcx/system-npcx7.c:114:54: error: conversion from 'long unsigned int' to 'uint8_t' {aka 'volatile unsigned char'} changes value from '16777215' to '255' [-Werror=overflow]
BUG=None
BRANCH=None
TEST=None
Change-Id: I006614026143fa180702ac0d1cc2ceb1b3c6eeb0
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1518660
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Diffstat (limited to 'chip/stm32/dma.c')
| -rw-r--r-- | chip/stm32/dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/chip/stm32/dma.c b/chip/stm32/dma.c index 26dfa0f823..e18676876f 100644 --- a/chip/stm32/dma.c +++ b/chip/stm32/dma.c @@ -65,7 +65,7 @@ void dma_select_channel(enum dma_channel channel, unsigned char stream) /* Local channel # starting from 0 on each DMA controller */ const unsigned char ch = channel % STM32_DMAC_PER_CTLR; const unsigned char shift = STM32_DMA_PERIPHERALS_PER_CHANNEL; - const unsigned char mask = (1 << shift) - 1; + const unsigned char mask = BIT(shift) - 1; uint32_t val; ASSERT(ch < STM32_DMAC_PER_CTLR); |