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From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: "Dmytro Laktyushkin" <Dmytro.Laktyushkin@amd.com>,
	"Harry Wentland" <harry.wentland@amd.com>,
	"Leo Li" <sunpeng.li@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"David (ChunMing) Zhou" <David1.Zhou@amd.com>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] drm/amd/display: Fix boolean expression in get_surf_rq_param
Date: Thu, 3 Jan 2019 13:48:45 -0600	[thread overview]
Message-ID: <20190103194845.GA26175@embeddedor> (raw)

Fix boolean expression by using logical AND operator '&&'
instead of bitwise operator '&'.

This issue was detected with the help of Coccinelle.

Fixes: 6d04ee9dc101 ("drm/amd/display: Restructuring and cleaning up DML")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c b/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c
index c2037daa8e66..d341b69fdc1a 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.c
@@ -881,7 +881,7 @@ static void get_surf_rq_param(
 	/* the dpte_group_bytes is reduced for the specific case of vertical
 	 * access of a tile surface that has dpte request of 8x1 ptes.
 	 */
-	if (!surf_linear & (log2_dpte_req_height_ptes == 0) & surf_vert) /*reduced, in this case, will have page fault within a group */
+	if (!surf_linear && (log2_dpte_req_height_ptes == 0) && surf_vert) /*reduced, in this case, will have page fault within a group */
 		rq_sizing_param->dpte_group_bytes = 512;
 	else
 		/*full size */
-- 
2.20.1


             reply	other threads:[~2019-01-03 19:48 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-03 19:48 Gustavo A. R. Silva [this message]
2019-01-03 21:11 ` [PATCH] drm/amd/display: Fix boolean expression in get_surf_rq_param Wentland, Harry
2019-01-03 21:18   ` Gustavo A. R. Silva
2019-03-22  3:10   ` Gustavo A. R. Silva
2019-03-22  3:14     ` Joe Perches
2019-03-22  3:30       ` Gustavo A. R. Silva

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