linux-kernel - [PATCH 5.15 210/247] drm/amd/pm: use bitmap_{from,to}

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220613094929.310086712@linuxfoundation.org>
Date:   Mon, 13 Jun 2022 12:11:52 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Alexander Gordeev <agordeev@...ux.ibm.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Claudio Imbrenda <imbrenda@...ux.ibm.com>,
        David Hildenbrand <david@...hat.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Yury Norov <yury.norov@...il.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 210/247] drm/amd/pm: use bitmap_{from,to}_arr32 where appropriate

From: Yury Norov <yury.norov@...il.com>

[ Upstream commit 525d6515604eb1373ce5e6372a6b6640953b2d6a ]

The smu_v1X_0_set_allowed_mask() uses bitmap_copy() to convert
bitmap to 32-bit array. This may be wrong due to endiannes issues.
Fix it by switching to bitmap_{from,to}_arr32.

CC: Alexander Gordeev <agordeev@...ux.ibm.com>
CC: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
CC: Christian Borntraeger <borntraeger@...ux.ibm.com>
CC: Claudio Imbrenda <imbrenda@...ux.ibm.com>
CC: David Hildenbrand <david@...hat.com>
CC: Heiko Carstens <hca@...ux.ibm.com>
CC: Janosch Frank <frankja@...ux.ibm.com>
CC: Rasmus Villemoes <linux@...musvillemoes.dk>
CC: Sven Schnelle <svens@...ux.ibm.com>
CC: Vasily Gorbik <gor@...ux.ibm.com>
Signed-off-by: Yury Norov <yury.norov@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 2 +-
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
index 87b055466a33..e6c93396434f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -772,7 +772,7 @@ int smu_v11_0_set_allowed_mask(struct smu_context *smu)
 		goto failed;
 	}
 
-	bitmap_copy((unsigned long *)feature_mask, feature->allowed, 64);
+	bitmap_to_arr32(feature_mask, feature->allowed, 64);
 
 	ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_SetAllowedFeaturesMaskHigh,
 					  feature_mask[1], NULL);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
index 8d4aa16b2ae7..6211570fb64f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -721,7 +721,7 @@ int smu_v13_0_set_allowed_mask(struct smu_context *smu)
 	if (bitmap_empty(feature->allowed, SMU_FEATURE_MAX) || feature->feature_num < 64)
 		goto failed;
 
-	bitmap_copy((unsigned long *)feature_mask, feature->allowed, 64);
+	bitmap_to_arr32(feature_mask, feature->allowed, 64);
 
 	ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_SetAllowedFeaturesMaskHigh,
 					      feature_mask[1], NULL);
-- 
2.35.1