From c3878a786be09d3f7df17936c922be430cdd4e8e Mon Sep 17 00:00:00 2001 From: Giovanni Cabiddu Date: Tue, 28 Sep 2021 12:44:34 +0100 Subject: [PATCH] crypto: qat - use hweight for bit counting Replace homegrown bit counting logic in adf_gen2_get_num_accels() and adf_gen2_get_num_aes() with the functions hweight16() and hweight32(), respectively. Signed-off-by: Giovanni Cabiddu Reviewed-by: Marco Chiappero Signed-off-by: Herbert Xu --- drivers/crypto/qat/qat_common/adf_gen2_hw_data.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c b/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c index 1deeeae..262bdc0 100644 --- a/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c +++ b/drivers/crypto/qat/qat_common/adf_gen2_hw_data.c @@ -54,31 +54,19 @@ EXPORT_SYMBOL_GPL(adf_gen2_disable_vf2pf_interrupts); u32 adf_gen2_get_num_accels(struct adf_hw_device_data *self) { - u32 i, ctr = 0; - if (!self || !self->accel_mask) return 0; - for (i = 0; i < self->num_accel; i++) - if (self->accel_mask & (1 << i)) - ctr++; - - return ctr; + return hweight16(self->accel_mask); } EXPORT_SYMBOL_GPL(adf_gen2_get_num_accels); u32 adf_gen2_get_num_aes(struct adf_hw_device_data *self) { - u32 i, ctr = 0; - if (!self || !self->ae_mask) return 0; - for (i = 0; i < self->num_engines; i++) - if (self->ae_mask & (1 << i)) - ctr++; - - return ctr; + return hweight32(self->ae_mask); } EXPORT_SYMBOL_GPL(adf_gen2_get_num_aes); -- 2.7.4