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authorTadeusz Struk <tadeusz.struk@intel.com>2014-07-25 15:55:57 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2014-08-01 22:36:08 +0800
commitd9a44abf3aede89c3dbb6dfa8a95c856b9ae8da3 (patch)
tree000c06fc0a7213825a2ab0b3f3a39bc26618e30b /drivers/crypto
parent689917211cb9d4ca6f90765eeb228ac2727f5dbc (diff)
downloadop-kernel-dev-d9a44abf3aede89c3dbb6dfa8a95c856b9ae8da3.zip
op-kernel-dev-d9a44abf3aede89c3dbb6dfa8a95c856b9ae8da3.tar.gz
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.c15
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 8d686a2..9b8a315 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);
}
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