From: Dan Carpenter <dan.carpenter@oracle.com>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
kernel-janitors@vger.kernel.org
Subject: [patch] drm/i915: precedence bug in hsw_compute_wm_results()
Date: Fri, 09 Aug 2013 09:43:02 +0000 [thread overview]
Message-ID: <20130809094302.GA29282@elgon.mountain> (raw)
The '!' operation has higher precedence than the compare so probably
this test is never true.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a5a9959..0b9d9a7 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2562,7 +2562,7 @@ static void hsw_compute_wm_results(struct drm_device *dev,
* a WM level. */
results->enable_fbc_wm = true;
for (level = 1; level <= max_level; level++) {
- if (!lp_results[level - 1].fbc_val > lp_maximums->fbc) {
+ if (lp_results[level - 1].fbc_val <= lp_maximums->fbc) {
results->enable_fbc_wm = false;
lp_results[level - 1].fbc_val = 0;
}
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
kernel-janitors@vger.kernel.org
Subject: [patch] drm/i915: precedence bug in hsw_compute_wm_results()
Date: Fri, 9 Aug 2013 12:43:02 +0300 [thread overview]
Message-ID: <20130809094302.GA29282@elgon.mountain> (raw)
The '!' operation has higher precedence than the compare so probably
this test is never true.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a5a9959..0b9d9a7 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2562,7 +2562,7 @@ static void hsw_compute_wm_results(struct drm_device *dev,
* a WM level. */
results->enable_fbc_wm = true;
for (level = 1; level <= max_level; level++) {
- if (!lp_results[level - 1].fbc_val > lp_maximums->fbc) {
+ if (lp_results[level - 1].fbc_val <= lp_maximums->fbc) {
results->enable_fbc_wm = false;
lp_results[level - 1].fbc_val = 0;
}
next reply other threads:[~2013-08-09 9:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-09 9:43 Dan Carpenter [this message]
2013-08-09 9:43 ` [patch] drm/i915: precedence bug in hsw_compute_wm_results() Dan Carpenter
2013-08-09 9:58 ` Chris Wilson
2013-08-09 9:58 ` Chris Wilson
2013-08-09 10:07 ` [patch v2] drm/i915: fix a limit check " Dan Carpenter
2013-08-09 10:07 ` Dan Carpenter
2013-08-09 10:29 ` [Intel-gfx] " Ville Syrjälä
2013-08-09 10:29 ` Ville Syrjälä
2013-08-09 16:27 ` Daniel Vetter
2013-08-09 16:27 ` Daniel Vetter
2013-08-09 10:04 ` [patch] drm/i915: precedence bug " Ville Syrjälä
2013-08-09 10:04 ` Ville Syrjälä
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