From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753056Ab2KIMLP (ORCPT ); Fri, 9 Nov 2012 07:11:15 -0500 Received: from mail-pa0-f46.google.com ([209.85.220.46]:62511 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752113Ab2KIMLN (ORCPT ); Fri, 9 Nov 2012 07:11:13 -0500 From: Akinobu Mita To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org Cc: Akinobu Mita , David Airlie , dri-devel@lists.freedesktop.org Subject: [PATCH] drm/radeon: Use hweight32 Date: Fri, 9 Nov 2012 21:10:41 +0900 Message-Id: <1352463043-9408-1-git-send-email-akinobu.mita@gmail.com> X-Mailer: git-send-email 1.7.11.7 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use hweight32 instead of counting for each bit Signed-off-by: Akinobu Mita Cc: David Airlie Cc: dri-devel@lists.freedesktop.org --- drivers/gpu/drm/radeon/r600.c | 8 +------- drivers/gpu/drm/radeon/r600_cp.c | 7 +------ 2 files changed, 2 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index cda280d..169ecc9 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1424,13 +1424,7 @@ u32 r6xx_remap_render_backend(struct radeon_device *rdev, int r600_count_pipe_bits(uint32_t val) { - int i, ret = 0; - - for (i = 0; i < 32; i++) { - ret += val & 1; - val >>= 1; - } - return ret; + return hweight32(val); } static void r600_gpu_init(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c index 2514123..be85f75 100644 --- a/drivers/gpu/drm/radeon/r600_cp.c +++ b/drivers/gpu/drm/radeon/r600_cp.c @@ -721,12 +721,7 @@ static u32 r600_get_tile_pipe_to_backend_map(u32 num_tile_pipes, static int r600_count_pipe_bits(uint32_t val) { - int i, ret = 0; - for (i = 0; i < 32; i++) { - ret += val & 1; - val >>= 1; - } - return ret; + return hweight32(val); } static void r600_gfx_init(struct drm_device *dev, -- 1.7.11.7