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spi: cadence-quadspi: Silence shiftTooManyBitsSigned warning

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drivers/spi/spi-cadence-quadspi.c:267:18: warning: Shifting signed 32-bit
value by 31 bits is undefined behaviour [shiftTooManyBitsSigned]
    return reg & (1 << CQSPI_REG_CONFIG_IDLE_LSB);
                    ^

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1614854872-8694-1-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jay Fang 2021-03-04 18:47:52 +08:00 committed by Mark Brown
parent 2c94b1b7dd
commit 31890269c0
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-cadence-quadspi.c
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@ -264,7 +264,7 @@ static bool cqspi_is_idle(struct cqspi_st *cqspi)
{
u32 reg = readl(cqspi->iobase + CQSPI_REG_CONFIG);
return reg & (1 << CQSPI_REG_CONFIG_IDLE_LSB);
return reg & (1UL << CQSPI_REG_CONFIG_IDLE_LSB);
}
static u32 cqspi_get_rd_sram_level(struct cqspi_st *cqspi)