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From: Finn Thain <fthain@telegraphics.com.au>
To: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Michael Schmitz <schmitzmic@gmail.com>,
	<linux-m68k@vger.kernel.org>, <linux-scsi@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Ondrej Zary <linux@rainbow-software.org>, Sam Creasey <sammy@sammy.net>
Subject: [PATCH v3 23/23] ncr5380: Call complete_cmd() for disconnected commands on bus reset
Date: Mon, 21 Mar 2016 13:32:12 +1100	[thread overview]
Message-ID: <20160321023155.603958101@telegraphics.com.au> (raw)
In-Reply-To: 20160321023149.604138431@telegraphics.com.au

[-- Attachment #1: ncr5380-disconnected-autosense-fix --]
[-- Type: text/plain, Size: 1077 bytes --]

I'm told that some targets are liable to disconnect a REQUEST SENSE
command. Theoretically this would cause a command undergoing autosense to
be moved onto the disconnected list. The bus reset handler must call
complete_cmd() for these commands, otherwise the hostdata->sensing pointer
will not get cleared. That would cause autosense processing to stall and
a timeout or an incorrect scsi_eh_restore_cmnd() would eventually follow.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>

---
 drivers/scsi/NCR5380.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/drivers/scsi/NCR5380.c
===================================================================
--- linux.orig/drivers/scsi/NCR5380.c	2016-03-21 13:31:40.000000000 +1100
+++ linux/drivers/scsi/NCR5380.c	2016-03-21 13:31:47.000000000 +1100
@@ -2437,7 +2437,7 @@ static int NCR5380_bus_reset(struct scsi
 		struct scsi_cmnd *cmd = NCR5380_to_scmd(ncmd);
 
 		set_host_byte(cmd, DID_RESET);
-		cmd->scsi_done(cmd);
+		complete_cmd(instance, cmd);
 	}
 	INIT_LIST_HEAD(&hostdata->disconnected);
 

  parent reply	other threads:[~2016-03-21  4:06 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-21  2:31 [PATCH v3 00/23] ncr5380: Eliminate macros, reduce code duplication, fix bugs etc Finn Thain
2016-03-21  2:31 ` [PATCH v3 01/23] g_ncr5380: Remove CONFIG_SCSI_GENERIC_NCR53C400 Finn Thain
2016-03-21  2:31 ` [PATCH v3 02/23] ncr5380: Remove FLAG_NO_PSEUDO_DMA where possible Finn Thain
2016-03-21  2:31 ` [PATCH v3 03/23] ncr5380: Remove REAL_DMA and REAL_DMA_POLL macros Finn Thain
2016-03-21  2:31 ` [PATCH v3 04/23] atari_NCR5380: Remove DMA_MIN_SIZE macro Finn Thain
2016-03-23  7:27   ` Hannes Reinecke
2016-03-21  2:31 ` [PATCH v3 05/23] ncr5380: Disable the DMA errata workaround flag by default Finn Thain
2016-03-21  2:31 ` [PATCH v3 06/23] ncr5380: Remove PSEUDO_DMA macro Finn Thain
2016-03-21  2:31 ` [PATCH v3 07/23] ncr5380: Remove BOARD_REQUIRES_NO_DELAY macro Finn Thain
2016-03-21  2:31 ` [PATCH v3 08/23] ncr5380: Use DMA hooks for PDMA Finn Thain
2016-03-21  2:31 ` [PATCH v3 09/23] ncr5380: Adopt uniform DMA setup convention Finn Thain
2016-03-21  2:31 ` [PATCH v3 10/23] ncr5380: Merge DMA implementation from atari_NCR5380 core driver Finn Thain
2016-03-21  2:32 ` [PATCH v3 11/23] atari_scsi: Adopt NCR5380.c " Finn Thain
2016-03-21  2:32 ` [PATCH v3 12/23] sun3_scsi: " Finn Thain
2016-03-21  2:32 ` [PATCH v3 13/23] ncr5380: Remove disused atari_NCR5380.c " Finn Thain
2016-03-21  2:32 ` [PATCH v3 14/23] ncr5380: Reduce max_lun limit Finn Thain
2016-03-23  7:28   ` Hannes Reinecke
2016-03-21  2:32 ` [PATCH v3 15/23] dmx3191d: Drop max_sectors limit Finn Thain
2016-03-21  2:32 ` [PATCH v3 16/23] ncr5380: Fix register decoding for debugging Finn Thain
2016-03-21  2:32 ` [PATCH v3 17/23] ncr5380: Remove remaining register storage qualifiers Finn Thain
2016-03-21  2:32 ` [PATCH v3 18/23] ncr5380: Remove DONT_USE_INTR and AUTOPROBE_IRQ macros Finn Thain
2016-03-21  2:32 ` [PATCH v3 19/23] ncr5380: Update usage documentation Finn Thain
2016-03-21  2:32 ` [PATCH v3 20/23] atari_scsi: Set a reasonable default for cmd_per_lun Finn Thain
2016-03-23  7:28   ` Hannes Reinecke
2016-03-21  2:32 ` [PATCH v3 21/23] atari_scsi: Allow can_queue to be increased for Falcon Finn Thain
2016-03-21  2:32 ` [PATCH v3 22/23] mac_scsi: Fix pseudo DMA implementation Finn Thain
2016-03-21  2:32 ` Finn Thain [this message]
2016-03-23  7:29   ` [PATCH v3 23/23] ncr5380: Call complete_cmd() for disconnected commands on bus reset Hannes Reinecke
2016-03-22 22:24 ` [PATCH v3 00/23] ncr5380: Eliminate macros, reduce code duplication, fix bugs etc Ondrej Zary
2016-03-23  1:35   ` Finn Thain

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