linux-kernel - [PATCH] drm: radeon: r600_dma: Replace cpu_to_le32() by lower_32

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Date:   Fri, 13 Aug 2021 16:54:34 +0800
From:   zhaoxiao <zhaoxiao@...ontech.com>
To:     airlied@...ux.ie
Cc:     alexander.deucher@....com, christian.koenig@....com,
        David1.Zhou@....com, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        zhaoxiao <zhaoxiao@...ontech.com>
Subject: [PATCH] drm: radeon: r600_dma: Replace cpu_to_le32() by lower_32_bits()

This patch fixes the following sparse errors:
drivers/gpu/drm/radeon/r600_dma.c:247:30: warning: incorrect type in assignment (different base types)
drivers/gpu/drm/radeon/r600_dma.c:247:30:    expected unsigned int volatile [usertype]
drivers/gpu/drm/radeon/r600_dma.c:247:30:    got restricted __le32 [usertype]

Signed-off-by: zhaoxiao <zhaoxiao@...ontech.com>
---
 drivers/gpu/drm/radeon/r600_dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c
index fb65e6fb5c4f..a2d0b1edcd22 100644
--- a/drivers/gpu/drm/radeon/r600_dma.c
+++ b/drivers/gpu/drm/radeon/r600_dma.c
@@ -244,7 +244,7 @@ int r600_dma_ring_test(struct radeon_device *rdev,
 	gpu_addr = rdev->wb.gpu_addr + index;
 
 	tmp = 0xCAFEDEAD;
-	rdev->wb.wb[index/4] = cpu_to_le32(tmp);
+	rdev->wb.wb[index/4] = lower_32_bits(tmp);
 
 	r = radeon_ring_lock(rdev, ring, 4);
 	if (r) {
-- 
2.20.1