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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Deepak R Varma <mh12gx2825@gmail.com>,
	Thierry Reding <treding@nvidia.com>,
	Sasha Levin <sashal@kernel.org>,
	dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org
Subject: [PATCH AUTOSEL 5.9 03/23] drm/tegra: replace idr_init() by idr_init_base()
Date: Sat, 12 Dec 2020 11:07:44 -0500	[thread overview]
Message-ID: <20201212160804.2334982-3-sashal@kernel.org> (raw)
In-Reply-To: <20201212160804.2334982-1-sashal@kernel.org>

From: Deepak R Varma <mh12gx2825@gmail.com>

[ Upstream commit 41f71629b4c432f8dd47d70ace813be5f79d4d75 ]

idr_init() uses base 0 which is an invalid identifier for this driver.
The new function idr_init_base allows IDR to set the ID lookup from
base 1. This avoids all lookups that otherwise starts from 0 since
0 is always unused.

References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/tegra/drm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index ba9d1c3e7cacf..e4baf07992a4d 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -90,7 +90,7 @@ static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
 	if (!fpriv)
 		return -ENOMEM;
 
-	idr_init(&fpriv->contexts);
+	idr_init_base(&fpriv->contexts, 1);
 	mutex_init(&fpriv->lock);
 	filp->driver_priv = fpriv;
 
-- 
2.27.0


WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	linux-tegra@vger.kernel.org, Thierry Reding <treding@nvidia.com>,
	Deepak R Varma <mh12gx2825@gmail.com>,
	dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 5.9 03/23] drm/tegra: replace idr_init() by idr_init_base()
Date: Sat, 12 Dec 2020 11:07:44 -0500	[thread overview]
Message-ID: <20201212160804.2334982-3-sashal@kernel.org> (raw)
In-Reply-To: <20201212160804.2334982-1-sashal@kernel.org>

From: Deepak R Varma <mh12gx2825@gmail.com>

[ Upstream commit 41f71629b4c432f8dd47d70ace813be5f79d4d75 ]

idr_init() uses base 0 which is an invalid identifier for this driver.
The new function idr_init_base allows IDR to set the ID lookup from
base 1. This avoids all lookups that otherwise starts from 0 since
0 is always unused.

References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/tegra/drm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index ba9d1c3e7cacf..e4baf07992a4d 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -90,7 +90,7 @@ static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
 	if (!fpriv)
 		return -ENOMEM;
 
-	idr_init(&fpriv->contexts);
+	idr_init_base(&fpriv->contexts, 1);
 	mutex_init(&fpriv->lock);
 	filp->driver_priv = fpriv;
 
-- 
2.27.0

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  parent reply	other threads:[~2020-12-12 16:39 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-12 16:07 [PATCH AUTOSEL 5.9 01/23] drm/tegra: sor: Don't warn on probe deferral Sasha Levin
2020-12-12 16:07 ` Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 02/23] drm/tegra: sor: Ensure regulators are disabled on teardown Sasha Levin
2020-12-12 16:07   ` Sasha Levin
2020-12-12 16:07 ` Sasha Levin [this message]
2020-12-12 16:07   ` [PATCH AUTOSEL 5.9 03/23] drm/tegra: replace idr_init() by idr_init_base() Sasha Levin
2020-12-12 16:07 ` [dm-devel] [PATCH AUTOSEL 5.9 04/23] dm integrity: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY Sasha Levin
2020-12-12 16:07   ` Sasha Levin
2020-12-12 16:07 ` [Cluster-devel] [PATCH AUTOSEL 5.9 05/23] gfs2: set lockdep subclass for iopen glocks Sasha Levin
2020-12-12 16:07   ` Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 06/23] ASoC: rt5682: change SAR voltage threshold Sasha Levin
2020-12-12 16:07   ` Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 07/23] kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 08/23] drm/tegra: sor: Disable clocks on error in tegra_sor_init() Sasha Levin
2020-12-12 16:07   ` Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 09/23] selftests: tc-testing: enable CONFIG_NET_SCH_RED as a module Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 10/23] habanalabs: free host huge va_range if not used Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 11/23] habanalabs: put devices before driver removal Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 12/23] arm64: syscall: exit userspace before unmasking exceptions Sasha Levin
2020-12-12 16:07   ` Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 13/23] vxlan: Add needed_headroom for lower device Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 14/23] vxlan: Copy needed_tailroom from lowerdev Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 15/23] scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callback() Sasha Levin
2020-12-12 18:09   ` Andrea Parri
2020-12-13 14:05     ` Sasha Levin
2020-12-14 11:07     ` Dan Carpenter
2020-12-14 13:06       ` Konstantin Ryabitsev
2020-12-14 18:29         ` Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 16/23] scsi: mpt3sas: Increase IOCInit request timeout to 30s Sasha Levin
2020-12-12 16:07 ` [dm-devel] [PATCH AUTOSEL 5.9 17/23] dm table: Remove BUG_ON(in_interrupt()) Sasha Levin
2020-12-12 16:07   ` Sasha Levin
2020-12-12 16:07 ` [PATCH AUTOSEL 5.9 18/23] iwlwifi: pcie: add one missing entry for AX210 Sasha Levin
2020-12-12 16:08 ` [PATCH AUTOSEL 5.9 19/23] iwlwifi: pcie: add some missing entries " Sasha Levin
2020-12-12 16:08 ` [PATCH AUTOSEL 5.9 20/23] drm/amd/display: Init clock value by current vbios CLKs Sasha Levin
2020-12-12 16:08   ` Sasha Levin
2020-12-12 16:08 ` [PATCH AUTOSEL 5.9 21/23] perf/x86/intel: Check PEBS status correctly Sasha Levin
2020-12-12 16:08 ` [PATCH AUTOSEL 5.9 22/23] kbuild: avoid split lines in .mod files Sasha Levin
2020-12-12 16:08 ` [PATCH AUTOSEL 5.9 23/23] tools/testing/selftests/vm: fix build error Sasha Levin

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