crypto: qat - Use hweight for bit counting

Use predefined hweight32 function instead of writing a new one.

Signed-off-by: Pingchao Yang <pingchao.yang@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 2 insertions, 13 deletions

diff --git a/drivers/crypto/qat/qat_common/qat_hal.c b/drivers/crypto/qat/qat_common/qat_hal.c
index 8d686a2edde6..9b8a31521ff3 100644
--- a/drivers/crypto/qat/qat_common/qat_hal.c
+++ b/drivers/crypto/qat/qat_common/qat_hal.c
@@ -795,17 +795,6 @@ static void qat_hal_get_uwords(struct icp_qat_fw_loader_handle *handle,
         qat_hal_wr_ae_csr(handle, ae, USTORE_ADDRESS, ustore_addr);
 }
 
-static int qat_hal_count_bits(unsigned int word)
-{
-        int n = 0;
-
-        while (word) {
-                n++;
-                word &= word - 1;
-        }
-        return n;
-}
-
 void qat_hal_wr_umem(struct icp_qat_fw_loader_handle *handle,
                      unsigned char ae, unsigned int uaddr,
                      unsigned int words_num, unsigned int *data)
@@ -822,9 +811,9 @@ void qat_hal_wr_umem(struct icp_qat_fw_loader_handle *handle,
                           ((data[i] & 0xff00) << 2) |
                           (0x3 << 8) | (data[i] & 0xff);
                 uwrd_hi = (0xf << 4) | ((data[i] & 0xf0000000) >> 28);
-                uwrd_hi |= (qat_hal_count_bits(data[i] & 0xffff) & 0x1) << 8;
+                uwrd_hi |= (hweight32(data[i] & 0xffff) & 0x1) << 8;
                 tmp = ((data[i] >> 0x10) & 0xffff);
-                uwrd_hi |= (qat_hal_count_bits(tmp) & 0x1) << 9;
+                uwrd_hi |= (hweight32(tmp) & 0x1) << 9;
                 qat_hal_wr_ae_csr(handle, ae, USTORE_DATA_LOWER, uwrd_lo);
                 qat_hal_wr_ae_csr(handle, ae, USTORE_DATA_UPPER, uwrd_hi);
         }