Sebastian Andrzej Siewior 20f8932f97 scsi: bnx2fc: Avoid using get_cpu() in bnx2fc_cmd_alloc() ... Using get_cpu() leads to disabling preemption and in this context it is not possible to acquire the following spinlock_t on PREEMPT_RT because it becomes a sleeping lock. Commit 0ea5c27583 ("[SCSI] bnx2fc: common free list for cleanup commands") says that it is using get_cpu() as a fix in case the CPU is preempted. While this might be true, the important part is that it is now using the same CPU for locking and unlocking while previously it always relied on smp_processor_id(). The date structure itself is protected with a lock so it does not rely on CPU-local access. Replace get_cpu() with raw_smp_processor_id() to obtain the current CPU number which is used as an index for the per-CPU resource. Link: https://lore.kernel.org/r/20220506105758.283887-5-bigeasy@linutronix.de Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>		2022-05-16 21:26:50 -04:00
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57xx_hsi_bnx2fc.h	scsi: Fix various misspellings of "connect"	2019-10-24 21:22:32 -04:00
Kconfig	scsi: bnx2fc: Fix Kconfig warning & CNIC build errors	2021-02-22 22:26:39 -05:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
bnx2fc.h	scsi: bnx2fc: Stop using the SCSI pointer	2022-02-22 21:11:05 -05:00
bnx2fc_constants.h	scsi: bnx2fc: Update copyright for 2017.	2017-06-27 21:39:09 -04:00
bnx2fc_debug.c	scsi: bnx2fc: Update copyright for 2017.	2017-06-27 21:39:09 -04:00
bnx2fc_debug.h	scsi: bnx2fc: Update copyright for 2017.	2017-06-27 21:39:09 -04:00
bnx2fc_els.c	scsi: bnx2fc: fix bnx2fc_cmd refcount imbalance in send_srr	2019-06-26 22:43:02 -04:00
bnx2fc_fcoe.c	scsi: fcoe: Use per-CPU API to update per-CPU statistics	2022-05-16 21:26:50 -04:00
bnx2fc_hwi.c	scsi: bnx2fc: Fix spelling mistake "mis-match" -> "mismatch"	2022-03-30 00:06:44 -04:00
bnx2fc_io.c	scsi: bnx2fc: Avoid using get_cpu() in bnx2fc_cmd_alloc()	2022-05-16 21:26:50 -04:00
bnx2fc_tgt.c	scsi: bnx2fc: Fix typo in comments	2022-01-31 16:49:31 -05:00