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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>
This commit is contained in:
Tadeusz Struk 2014-07-25 15:55:57 -07:00 committed by Herbert Xu
parent 689917211c
commit d9a44abf3a
1 changed files with 2 additions and 13 deletions
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15
drivers/crypto/qat/qat_common/qat_hal.c
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@ -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); 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, void qat_hal_wr_umem(struct icp_qat_fw_loader_handle *handle,
unsigned char ae, unsigned int uaddr, unsigned char ae, unsigned int uaddr,
unsigned int words_num, unsigned int *data) 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) | ((data[i] & 0xff00) << 2) |
(0x3 << 8) | (data[i] & 0xff); (0x3 << 8) | (data[i] & 0xff);
uwrd_hi = (0xf << 4) | ((data[i] & 0xf0000000) >> 28); 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); 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_LOWER, uwrd_lo);
qat_hal_wr_ae_csr(handle, ae, USTORE_DATA_UPPER, uwrd_hi); qat_hal_wr_ae_csr(handle, ae, USTORE_DATA_UPPER, uwrd_hi);
} }