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Patch "scsi: qla2xxx: Suppress a kernel complaint in qla_init_base_qpair()" has been added to the 4.14-stable tree

PATCH [email protected] 1 participant 1 message Nov 27, 2017

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Stable branch SCSI QLogic QLA2XXX FC-SCSI driver
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This is a note to let you know that I've just added the patch titled

scsi: qla2xxx: Suppress a kernel complaint in qla_init_base_qpair()

to the 4.14-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:
scsi-qla2xxx-suppress-a-kernel-complaint-in-qla_init_base_qpair.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 8653188763b56e0bcbdcab30cc7b059672c900ac Mon Sep 17 00:00:00 2001

From: Bart Van Assche <[email protected]>
Date: Mon, 6 Nov 2017 11:59:05 -0800
Subject: scsi: qla2xxx: Suppress a kernel complaint in qla_init_base_qpair()

From: Bart Van Assche <[email protected]>

commit 8653188763b56e0bcbdcab30cc7b059672c900ac upstream.

Avoid that the following is reported while loading the qla2xxx kernel module:

BUG: using smp_processor_id() in preemptible [00000000] code: modprobe/783
caller is debug_smp_processor_id+0x17/0x20
CPU: 7 PID: 783 Comm: modprobe Not tainted 4.14.0-rc8-dbg+ #2
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
 dump_stack+0x8e/0xce
 check_preemption_disabled+0xe3/0xf0
 debug_smp_processor_id+0x17/0x20
 qla2x00_probe_one+0xf43/0x26c0 [qla2xxx]
 pci_device_probe+0xca/0x140
 driver_probe_device+0x2e2/0x440
 __driver_attach+0xa3/0xe0
 bus_for_each_dev+0x5f/0x90
 driver_attach+0x19/0x20
 bus_add_driver+0x1c0/0x260
 driver_register+0x5b/0xd0
 __pci_register_driver+0x63/0x70
 qla2x00_module_init+0x1d6/0x222 [qla2xxx]
 do_one_initcall+0x3c/0x163
 do_init_module+0x55/0x1eb
 load_module+0x20a2/0x2890
 SYSC_finit_module+0xd7/0xf0
 SyS_finit_module+0x9/0x10
 entry_SYSCALL_64_fastpath+0x23/0xc2
Fixes commit 8abfa9e22683 ("scsi: qla2xxx: Add function call to qpair for door bell")
Signed-off-by Bart Van Assche <[email protected]>
Cc Quinn Tran <[email protected]>
Cc Himanshu Madhani <[email protected]>
Acked-by Himanshu Madhani <[email protected]>
Signed-off-by Martin K. Petersen <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 drivers/scsi/qla2xxx/qla_os.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/scsi/qla2xxx/qla_os.c +1 -1
@@ -388,7 +388,7 @@ static void qla_init_base_qpair(struct s
 	INIT_LIST_HEAD(&ha->base_qpair->nvme_done_list);
 	ha->base_qpair->enable_class_2 = ql2xenableclass2;
 	/* init qpair to this cpu. Will adjust at run time. */
-	qla_cpu_update(rsp->qpair, smp_processor_id());
+	qla_cpu_update(rsp->qpair, raw_smp_processor_id());
 	ha->base_qpair->pdev = ha->pdev;
 
 	if (IS_QLA27XX(ha) || IS_QLA83XX(ha))

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/block-fix-a-race-between-blk_cleanup_queue-and-timeout-handling.patch queue-4.14/scsi-qla2xxx-suppress-a-kernel-complaint-in-qla_init_base_qpair.patch