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From: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
To: JBottomley@odin.com, linux-scsi@vger.kernel.org,
	martin.petersen@oracle.com
Cc: aacraid@pmc-sierra.com, gana.sridaran@microsemi.com,
	scott.benesh@microsemi.com, vishal.josemannanal@microsemi.com,
	RaghavaAditya.Renukunta@microsemi.com
Subject: [PATCH 08/10] aacraid: Remove code to needlessly complete fib
Date: Mon, 25 Apr 2016 23:32:26 -0700	[thread overview]
Message-ID: <20160426063226.28402.37546.stgit@pmcuser-System-Product-Name> (raw)
In-Reply-To: <20160426062414.28402.69178.stgit@pmcuser-System-Product-Name>

Currently driver completes double completed or spurious interrupted fibs.
This  is not necessary and causes the SCSI mid layer to issue aborts and
resets, since completing a fib  prematurely might trigger a race condition
resulting in the driver not calling the scsi_done callback.

Fixed by removing the call to fib complete.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
---
 drivers/scsi/aacraid/dpcsup.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c
index d677b52..7e83620 100644
--- a/drivers/scsi/aacraid/dpcsup.c
+++ b/drivers/scsi/aacraid/dpcsup.c
@@ -392,9 +392,10 @@ unsigned int aac_intr_normal(struct aac_dev *dev, u32 index,
 			if (likely(fib->callback && fib->callback_data)) {
 				fib->flags &= FIB_CONTEXT_FLAG_FASTRESP;
 				fib->callback(fib->callback_data, fib);
-			} else {
-				aac_fib_complete(fib);
-			}
+			} else
+				dev_info(&dev->pdev->dev,
+				"Invalid callback_fib[%d] (*%p)(%p)\n",
+				index, fib->callback, fib->callback_data);
 		} else {
 			unsigned long flagv;
 	  		dprintk((KERN_INFO "event_wait up\n"));


  parent reply	other threads:[~2016-04-26  6:37 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-26  6:30 [PATCH 00/10] aacraid: Patchset for aacraid driver version 41066 Raghava Aditya Renukunta
2016-04-26  6:30 ` [PATCH 01/10] aacraid: Removed unnecessary checks for NULL Raghava Aditya Renukunta
2016-04-26  6:31 ` [PATCH 02/10] aacraid: Fix incorrectly named MACRO Raghava Aditya Renukunta
2016-04-27  9:14   ` Johannes Thumshirn
2016-04-26  6:31 ` [PATCH 03/10] aacraid: Start adapter after updating number of MSIX vectors Raghava Aditya Renukunta
2016-04-27  9:14   ` Johannes Thumshirn
2016-04-26  6:31 ` [PATCH 04/10] aacraid: Relinquish CPU during timeout wait Raghava Aditya Renukunta
2016-04-27  9:31   ` Johannes Thumshirn
2016-04-26  6:31 ` [PATCH 05/10] aacraid: Disable MSI mode for series 6, 7, 8 cards Raghava Aditya Renukunta
2016-04-27  9:16   ` Johannes Thumshirn
2016-04-26  6:31 ` [PATCH 06/10] aacraid: Fix for aac_command_thread hang Raghava Aditya Renukunta
2016-04-27  9:32   ` Johannes Thumshirn
2016-04-26  6:32 ` [PATCH 07/10] aacraid: Log firmware AIF messages Raghava Aditya Renukunta
2016-04-27  9:21   ` Johannes Thumshirn
2016-04-26  6:32 ` Raghava Aditya Renukunta [this message]
2016-04-27  9:24   ` [PATCH 08/10] aacraid: Remove code to needlessly complete fib Johannes Thumshirn
2016-04-27 16:34     ` Raghava Aditya Renukunta
2016-04-28  7:47       ` Johannes Thumshirn
2016-04-26  6:32 ` [PATCH 09/10] aacraid: Fix for KDUMP driver hang Raghava Aditya Renukunta
2016-04-27  9:29   ` Johannes Thumshirn
2016-04-27 16:49     ` Raghava Aditya Renukunta
2016-04-28  7:49       ` Johannes Thumshirn
2016-04-26  6:32 ` [PATCH 10/10] aacraid: Update driver version Raghava Aditya Renukunta
2016-04-27  9:30   ` Johannes Thumshirn
2016-04-29 23:15 ` [PATCH 00/10] aacraid: Patchset for aacraid driver version 41066 Martin K. Petersen

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