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List:       linux-stable-commits
Subject:    Patch "Revert "drm/amdgpu: install stub fence into potential unused fence pointers"" has been added 
From:       <gregkh () linuxfoundation ! org>
Date:       2023-08-31 10:33:06
Message-ID: 2023083106-reversal-sinister-c73b () gregkh
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This is a note to let you know that I've just added the patch titled

    Revert "drm/amdgpu: install stub fence into potential unused fence pointers"

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     revert-drm-amdgpu-install-stub-fence-into-potential-unused-fence-pointers.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From e0b68aa6dbb170585111e0565669ae7eed15bc07 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 31 Aug 2023 12:27:47 +0200
Subject: Revert "drm/amdgpu: install stub fence into potential unused fence pointers"

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 04bd3a362d2f1788272776bd8b10e5a012e69b77 which is
commit 187916e6ed9d0c3b3abc27429f7a5f8c936bd1f0 upstream.

It is reported to cause lots of log spam, so it should be dropped for
now.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/27d08b24-3581-4451-b8db-5df144784d6a@roeck-us.net
Reported-by: From: Chia-I Wu <olvaffe@gmail.com>
Link: https://lore.kernel.org/r/CAPaKu7RTgAMBLHbwtp4zgiBSDrTFtAj07k5qMzkuLQy2Zr+sZA@mail.gmail.com
Cc: Christian König <christian.koenig@amd.com>
Cc: Lang Yu <Lang.Yu@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2155,7 +2155,6 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(st
 	amdgpu_vm_bo_base_init(&bo_va->base, vm, bo);
 
 	bo_va->ref_count = 1;
-	bo_va->last_pt_update = dma_fence_get_stub();
 	INIT_LIST_HEAD(&bo_va->valids);
 	INIT_LIST_HEAD(&bo_va->invalids);
 
@@ -2868,8 +2867,7 @@ int amdgpu_vm_init(struct amdgpu_device
 		vm->update_funcs = &amdgpu_vm_cpu_funcs;
 	else
 		vm->update_funcs = &amdgpu_vm_sdma_funcs;
-
-	vm->last_update = dma_fence_get_stub();
+	vm->last_update = NULL;
 	vm->last_unlocked = dma_fence_get_stub();
 
 	mutex_init(&vm->eviction_lock);
@@ -3044,7 +3042,7 @@ int amdgpu_vm_make_compute(struct amdgpu
 		vm->update_funcs = &amdgpu_vm_sdma_funcs;
 	}
 	dma_fence_put(vm->last_update);
-	vm->last_update = dma_fence_get_stub();
+	vm->last_update = NULL;
 	vm->is_compute_context = true;
 
 	if (vm->pasid) {


Patches currently in stable-queue which might be from gregkh@linuxfoundation.org are

queue-5.10/revert-mips-alchemy-fix-dbdma2.patch
queue-5.10/revert-drm-amdgpu-install-stub-fence-into-potential-unused-fence-pointers.patch
queue-5.10/arm-module-use-module_init_layout_section-to-spot-init-sections.patch
queue-5.10/arm64-module-plts-inline-linux-moduleloader.h.patch
queue-5.10/mhi-pci_generic-fix-implicit-conversion-warning.patch
queue-5.10/module-expose-module_init_layout_section.patch
queue-5.10/arm64-module-use-module_init_layout_section-to-spot-init-sections.patch
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