Patch "crypto: qat - remove double initialization of value" has been added to the 6.8-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    crypto: qat - remove double initialization of value

to the 6.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     crypto-qat-remove-double-initialization-of-value.patch
and it can be found in the queue-6.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 6ec62d43fcb72a6df5d9ba0ee818620dfcf36ecf
Author: Adam Guerin <adam.guerin@xxxxxxxxx>
Date:   Fri Feb 16 15:19:58 2024 +0000

    crypto: qat - remove double initialization of value
    
    [ Upstream commit a66cf93ab33853f17b8cc33a99263dd0a383a1a1 ]
    
    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@xxxxxxxxx>
    Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
    Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

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 048c246079390..2dd3772bf58a6 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;