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| author | Adam Guerin <adam.guerin@intel.com> | 2024-02-16 16:19:58 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-02-24 01:41:20 +0100 |
| commit | a66cf93ab33853f17b8cc33a99263dd0a383a1a1 (patch) | |
| tree | bd64675c2a09161b6bd1a071ffec2eb5727e52a7 /drivers/crypto | |
| parent | crypto: qat - avoid division by zero (diff) | |
| download | linux-a66cf93ab33853f17b8cc33a99263dd0a383a1a1.tar.xz linux-a66cf93ab33853f17b8cc33a99263dd0a383a1a1.zip | |
crypto: qat - remove double initialization of value
Remove double initialization of the reg variable.
This is to fix the following warning when compiling the QAT driver
using clang scan-build:
drivers/crypto/intel/qat/qat_common/adf_gen4_ras.c:1010:6: warning: Value stored to 'reg' during its initialization is never read [deadcode.DeadStores]
1010 | u32 reg = ADF_CSR_RD(csr, ADF_GEN4_SSMCPPERR);
| ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/crypto/intel/qat/qat_common/adf_gen4_ras.c:1109:6: warning: Value stored to 'reg' during its initialization is never read [deadcode.DeadStores]
1109 | u32 reg = ADF_CSR_RD(csr, ADF_GEN4_SER_ERR_SSMSH);
| ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fixes: 99b1c9826e48 ("crypto: qat - count QAT GEN4 errors")
Signed-off-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/intel/qat/qat_common/adf_gen4_ras.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_ras.c b/drivers/crypto/intel/qat/qat_common/adf_gen4_ras.c index 048c24607939..2dd3772bf58a 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_gen4_ras.c +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_ras.c @@ -1007,8 +1007,7 @@ static bool adf_handle_spppar_err(struct adf_accel_dev *accel_dev, static bool adf_handle_ssmcpppar_err(struct adf_accel_dev *accel_dev, void __iomem *csr, u32 iastatssm) { - u32 reg = ADF_CSR_RD(csr, ADF_GEN4_SSMCPPERR); - u32 bits_num = BITS_PER_REG(reg); + u32 reg, bits_num = BITS_PER_REG(reg); bool reset_required = false; unsigned long errs_bits; u32 bit_iterator; @@ -1106,8 +1105,7 @@ static bool adf_handle_rf_parr_err(struct adf_accel_dev *accel_dev, static bool adf_handle_ser_err_ssmsh(struct adf_accel_dev *accel_dev, void __iomem *csr, u32 iastatssm) { - u32 reg = ADF_CSR_RD(csr, ADF_GEN4_SER_ERR_SSMSH); - u32 bits_num = BITS_PER_REG(reg); + u32 reg, bits_num = BITS_PER_REG(reg); bool reset_required = false; unsigned long errs_bits; u32 bit_iterator; |