rebase patches on top of Ubuntu-5.11.0-39.43

(generated with debian/scripts/import-upstream-tag)

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

patches/kernel/0003-pci-Enable-overrides-for-missing-ACS-capabilities-4..patch

@@ -75,7 +75,7 @@ index ee85be64b680..a38a8e44422e 100644
  				Safety option to keep boot IRQs enabled. This
  				should never be necessary.
 diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
-index 6e9f3c366298..cc0e3a76168e 100644
+index 35d0734830f6..7aa9d54c9263 100644
 --- a/drivers/pci/quirks.c
 +++ b/drivers/pci/quirks.c
 @@ -193,6 +193,106 @@ static int __init pci_apply_final_quirks(void)

patches/kernel/0006-io_uring-don-t-block-level-reissue-off-completion-pa.patch

@@ -27,10 +27,10 @@ Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
  1 file changed, 7 insertions(+)
 
 diff --git a/fs/io_uring.c b/fs/io_uring.c
-index d24eb8e53c4c..b5192f2f8178 100644
+index d43626339a2d..32b9d5a56c8c 100644
 --- a/fs/io_uring.c
 +++ b/fs/io_uring.c
-@@ -2743,6 +2743,13 @@ static bool io_rw_reissue(struct io_kiocb *req, long res)
+@@ -2744,6 +2744,13 @@ static bool io_rw_reissue(struct io_kiocb *req, long res)
  	if (percpu_ref_is_dying(&req->ctx->refs))
  		return false;
  

patches/kernel/0009-blk-mq-fix-kernel-panic-during-iterating-over-flush-.patch

@@ -1,75 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Ming Lei <ming.lei@redhat.com>
-Date: Fri, 10 Sep 2021 14:30:15 +0200
-Subject: [PATCH] blk-mq: fix kernel panic during iterating over flush request
-
-commit c2da19ed50554ce52ecbad3655c98371fe58599f upstream.
-
-For fixing use-after-free during iterating over requests, we grabbed
-request's refcount before calling ->fn in commit 2e315dc07df0 ("blk-mq:
-grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter").
-Turns out this way may cause kernel panic when iterating over one flush
-request:
-
-1) old flush request's tag is just released, and this tag is reused by
-one new request, but ->rqs[] isn't updated yet
-
-2) the flush request can be re-used for submitting one new flush command,
-so blk_rq_init() is called at the same time
-
-3) meantime blk_mq_queue_tag_busy_iter() is called, and old flush request
-is retrieved from ->rqs[tag]; when blk_mq_put_rq_ref() is called,
-flush_rq->end_io may not be updated yet, so NULL pointer dereference
-is triggered in blk_mq_put_rq_ref().
-
-Fix the issue by calling refcount_set(&flush_rq->ref, 1) after
-flush_rq->end_io is set. So far the only other caller of blk_rq_init() is
-scsi_ioctl_reset() in which the request doesn't enter block IO stack and
-the request reference count isn't used, so the change is safe.
-
-Fixes: 2e315dc07df0 ("blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter")
-Reported-by: "Blank-Burian, Markus, Dr." <blankburian@uni-muenster.de>
-Tested-by: "Blank-Burian, Markus, Dr." <blankburian@uni-muenster.de>
-Signed-off-by: Ming Lei <ming.lei@redhat.com>
-Reviewed-by: Christoph Hellwig <hch@lst.de>
-Reviewed-by: John Garry <john.garry@huawei.com>
-Link: https://lore.kernel.org/r/20210811142624.618598-1-ming.lei@redhat.com
-Signed-off-by: Jens Axboe <axboe@kernel.dk>
-Cc: Yi Zhang <yi.zhang@redhat.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- block/blk-core.c  | 1 -
- block/blk-flush.c | 8 ++++++++
- 2 files changed, 8 insertions(+), 1 deletion(-)
-
-diff --git a/block/blk-core.c b/block/blk-core.c
-index ce3b75f8b56d..9658caafddc2 100644
---- a/block/blk-core.c
-+++ b/block/blk-core.c
-@@ -121,7 +121,6 @@ void blk_rq_init(struct request_queue *q, struct request *rq)
- 	rq->internal_tag = BLK_MQ_NO_TAG;
- 	rq->start_time_ns = ktime_get_ns();
- 	rq->part = NULL;
--	refcount_set(&rq->ref, 1);
- 	blk_crypto_rq_set_defaults(rq);
- }
- EXPORT_SYMBOL(blk_rq_init);
-diff --git a/block/blk-flush.c b/block/blk-flush.c
-index e89d007dbf6a..8b11ab3b3762 100644
---- a/block/blk-flush.c
-+++ b/block/blk-flush.c
-@@ -329,6 +329,14 @@ static void blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq,
- 	flush_rq->rq_flags |= RQF_FLUSH_SEQ;
- 	flush_rq->rq_disk = first_rq->rq_disk;
- 	flush_rq->end_io = flush_end_io;
-+	/*
-+	 * Order WRITE ->end_io and WRITE rq->ref, and its pair is the one
-+	 * implied in refcount_inc_not_zero() called from
-+	 * blk_mq_find_and_get_req(), which orders WRITE/READ flush_rq->ref
-+	 * and READ flush_rq->end_io
-+	 */
-+	smp_wmb();
-+	refcount_set(&flush_rq->ref, 1);
- 
- 	blk_flush_queue_rq(flush_rq, false);
- }

patches/kernel/0010-blk-mq-fix-is_flush_rq.patch

@@ -1,91 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Ming Lei <ming.lei@redhat.com>
-Date: Fri, 10 Sep 2021 14:30:16 +0200
-Subject: [PATCH] blk-mq: fix is_flush_rq
-
-commit a9ed27a764156929efe714033edb3e9023c5f321 upstream.
-
-is_flush_rq() is called from bt_iter()/bt_tags_iter(), and runs the
-following check:
-
-	hctx->fq->flush_rq == req
-
-but the passed hctx from bt_iter()/bt_tags_iter() may be NULL because:
-
-1) memory re-order in blk_mq_rq_ctx_init():
-
-	rq->mq_hctx = data->hctx;
-	...
-	refcount_set(&rq->ref, 1);
-
-OR
-
-2) tag re-use and ->rqs[] isn't updated with new request.
-
-Fix the issue by re-writing is_flush_rq() as:
-
-	return rq->end_io == flush_end_io;
-
-which turns out simpler to follow and immune to data race since we have
-ordered WRITE rq->end_io and refcount_set(&rq->ref, 1).
-
-Fixes: 2e315dc07df0 ("blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter")
-Cc: "Blank-Burian, Markus, Dr." <blankburian@uni-muenster.de>
-Cc: Yufen Yu <yuyufen@huawei.com>
-Signed-off-by: Ming Lei <ming.lei@redhat.com>
-Link: https://lore.kernel.org/r/20210818010925.607383-1-ming.lei@redhat.com
-Signed-off-by: Jens Axboe <axboe@kernel.dk>
-Cc: Yi Zhang <yi.zhang@redhat.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- block/blk-flush.c | 5 +++++
- block/blk-mq.c    | 2 +-
- block/blk.h       | 6 +-----
- 3 files changed, 7 insertions(+), 6 deletions(-)
-
-diff --git a/block/blk-flush.c b/block/blk-flush.c
-index 8b11ab3b3762..705ee6c99020 100644
---- a/block/blk-flush.c
-+++ b/block/blk-flush.c
-@@ -262,6 +262,11 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
- 	spin_unlock_irqrestore(&fq->mq_flush_lock, flags);
- }
- 
-+bool is_flush_rq(struct request *rq)
-+{
-+	return rq->end_io == flush_end_io;
-+}
-+
- /**
-  * blk_kick_flush - consider issuing flush request
-  * @q: request_queue being kicked
-diff --git a/block/blk-mq.c b/block/blk-mq.c
-index 82db8595bdaa..7dd1b6973c79 100644
---- a/block/blk-mq.c
-+++ b/block/blk-mq.c
-@@ -937,7 +937,7 @@ static bool blk_mq_req_expired(struct request *rq, unsigned long *next)
- 
- void blk_mq_put_rq_ref(struct request *rq)
- {
--	if (is_flush_rq(rq, rq->mq_hctx))
-+	if (is_flush_rq(rq))
- 		rq->end_io(rq, 0);
- 	else if (refcount_dec_and_test(&rq->ref))
- 		__blk_mq_free_request(rq);
-diff --git a/block/blk.h b/block/blk.h
-index 7550364c326c..4a4ffd992790 100644
---- a/block/blk.h
-+++ b/block/blk.h
-@@ -43,11 +43,7 @@ static inline void __blk_get_queue(struct request_queue *q)
- 	kobject_get(&q->kobj);
- }
- 
--static inline bool
--is_flush_rq(struct request *req, struct blk_mq_hw_ctx *hctx)
--{
--	return hctx->fq->flush_rq == req;
--}
-+bool is_flush_rq(struct request *req);
- 
- struct blk_flush_queue *blk_alloc_flush_queue(int node, int cmd_size,
- 					      gfp_t flags);

patches/kernel/0011-bnx2x-Fix-enabling-network-interfaces-without-VFs.patch

@@ -1,34 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Adrian Bunk <bunk@kernel.org>
-Date: Sun, 12 Sep 2021 22:05:23 +0300
-Subject: [PATCH] bnx2x: Fix enabling network interfaces without VFs
-
-This function is called to enable SR-IOV when available,
-not enabling interfaces without VFs was a regression.
-
-Fixes: 65161c35554f ("bnx2x: Fix missing error code in bnx2x_iov_init_one()")
-Signed-off-by: Adrian Bunk <bunk@kernel.org>
-Reported-by: YunQiang Su <wzssyqa@gmail.com>
-Tested-by: YunQiang Su <wzssyqa@gmail.com>
-Cc: stable@vger.kernel.org
-Acked-by: Shai Malin <smalin@marvell.com>
-Link: https://lore.kernel.org/r/20210912190523.27991-1-bunk@kernel.org
-Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
----
- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
-index f255fd0b16db..6fbf735fca31 100644
---- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
-+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
-@@ -1224,7 +1224,7 @@ int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param,
- 
- 	/* SR-IOV capability was enabled but there are no VFs*/
- 	if (iov->total == 0) {
--		err = -EINVAL;
-+		err = 0;
- 		goto failed;
- 	}
-