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| author |   Giovanni Cabiddu <giovanni.cabiddu@intel.com> | 2022-03-04 18:03:54 +0000 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2022-03-09 15:12:32 +1200 |
| commit | c700216c70fca38ae7ceff07ed63d79ae25379c5 (patch) | |
| tree | 85cc6ca7cd90efb70be7b122980a84e69e05bd59 /drivers/crypto/qat | |
| parent | crypto: qat - disable registration of algorithms (diff) | |
| download | linux-dev-c700216c70fca38ae7ceff07ed63d79ae25379c5.tar.xz linux-dev-c700216c70fca38ae7ceff07ed63d79ae25379c5.zip | |
crypto: qat - remove unneeded assignment
The function adf_gen4_get_vf2pf_sources() computes a mask which is
stored in a variable which is returned and not used.
Remove superfluous assignment of variable.
This is to fix the following warning when compiling the QAT driver
with clang scan-build:
drivers/crypto/qat/qat_common/adf_gen4_pfvf.c:46:9: warning: Although the value stored to 'sou' is used in the enclosing expression, the value is never actually read from 'sou' [deadcode.DeadStores]
return sou &= ~mask;
^ ~~~~~
Fixes: 5901b4af6e07 ("crypto: qat - fix access to PFVF interrupt registers for GEN4")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/qat')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_gen4_pfvf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c b/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c index 3b3ea849c5e5..d80d493a7756 100644 --- a/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c +++ b/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c @@ -43,7 +43,7 @@ static u32 adf_gen4_get_vf2pf_sources(void __iomem *pmisc_addr) sou = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_SOU); mask = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_MSK); - return sou &= ~mask; + return sou & ~mask; } static void adf_gen4_enable_vf2pf_interrupts(void __iomem *pmisc_addr, |