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| author | Tadeusz Struk <tadeusz.struk@intel.com> | 2014-07-25 15:55:57 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-08-01 22:36:08 +0800 |
| commit | d9a44abf3aede89c3dbb6dfa8a95c856b9ae8da3 (patch) | |
| tree | 000c06fc0a7213825a2ab0b3f3a39bc26618e30b /drivers/crypto | |
| parent | 689917211cb9d4ca6f90765eeb228ac2727f5dbc (diff) | |
| download | linux-stable-d9a44abf3aede89c3dbb6dfa8a95c856b9ae8da3.tar.gz linux-stable-d9a44abf3aede89c3dbb6dfa8a95c856b9ae8da3.tar.bz2 linux-stable-d9a44abf3aede89c3dbb6dfa8a95c856b9ae8da3.zip | |
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>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/qat/qat_common/qat_hal.c | 15 |
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); } |