From patchwork Fri Apr 23 11:39:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 426567 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52B97C433B4 for ; Fri, 23 Apr 2021 11:40:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 24F506115B for ; Fri, 23 Apr 2021 11:40:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242316AbhDWLlF (ORCPT ); Fri, 23 Apr 2021 07:41:05 -0400 Received: from mx2.suse.de ([195.135.220.15]:46938 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242302AbhDWLks (ORCPT ); Fri, 23 Apr 2021 07:40:48 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id AD2C7B1F3; Fri, 23 Apr 2021 11:39:55 +0000 (UTC) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Bart van Assche , Hannes Reinecke Subject: [PATCH 29/39] aha152x: do not set message byte when calling scsi_done() Date: Fri, 23 Apr 2021 13:39:34 +0200 Message-Id: <20210423113944.42672-30-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210423113944.42672-1-hare@suse.de> References: <20210423113944.42672-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The done() function is called with a host_byte indicating the actual error when the message byte is set. As the host byte takes precedence during error recovery we can drop setting the message byte if the host byte is set, too. The only other case is when the host byte is DID_OK, but in that case the message byte is always COMMAND_COMPLETE (ie 0), so we can drop it there, too. Signed-off-by: Hannes Reinecke --- drivers/scsi/aha152x.c | 42 +++++++++++++++--------------------------- 1 file changed, 15 insertions(+), 27 deletions(-) diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index f59d11f8080a..b13b5c85f3de 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -620,7 +620,7 @@ static irqreturn_t intr(int irq, void *dev_id); static void reset_ports(struct Scsi_Host *shpnt); static void aha152x_error(struct Scsi_Host *shpnt, char *msg); static void done(struct Scsi_Host *shpnt, unsigned char status_byte, - unsigned char msg_byte, unsigned char host_byte); + unsigned char host_byte); /* diagnostics */ static void show_command(struct scsi_cmnd * ptr); @@ -1273,7 +1273,7 @@ static int aha152x_biosparam(struct scsi_device *sdev, struct block_device *bdev * */ static void done(struct Scsi_Host *shpnt, unsigned char status_byte, - unsigned char msg_byte, unsigned char host_byte) + unsigned char host_byte) { if (CURRENT_SC) { if(DONE_SC) @@ -1283,8 +1283,7 @@ static void done(struct Scsi_Host *shpnt, unsigned char status_byte, DONE_SC = CURRENT_SC; CURRENT_SC = NULL; - DONE_SC->result = status_byte; - set_msg_byte(DONE_SC, msg_byte); + set_status_byte(DONE_SC, status_byte); set_host_byte(DONE_SC, host_byte); } else printk(KERN_ERR "aha152x: done() called outside of command\n"); @@ -1380,16 +1379,13 @@ static void busfree_run(struct Scsi_Host *shpnt) if(CURRENT_SC->SCp.phase & completed) { /* target sent COMMAND COMPLETE */ - done(shpnt, CURRENT_SC->SCp.Status, - CURRENT_SC->SCp.Message, DID_OK); + done(shpnt, CURRENT_SC->SCp.Status, DID_OK); } else if(CURRENT_SC->SCp.phase & aborted) { - done(shpnt, CURRENT_SC->SCp.Status, - CURRENT_SC->SCp.Message, DID_ABORT); + done(shpnt, CURRENT_SC->SCp.Status, DID_ABORT); } else if(CURRENT_SC->SCp.phase & resetted) { - done(shpnt, CURRENT_SC->SCp.Status, - CURRENT_SC->SCp.Message, DID_RESET); + done(shpnt, CURRENT_SC->SCp.Status, DID_RESET); } else if(CURRENT_SC->SCp.phase & disconnected) { /* target sent DISCONNECT */ @@ -1401,8 +1397,7 @@ static void busfree_run(struct Scsi_Host *shpnt) CURRENT_SC = NULL; } else { - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_ERROR); + done(shpnt, SAM_STAT_GOOD, DID_ERROR); } #if defined(AHA152X_STAT) } else { @@ -1523,8 +1518,7 @@ static void seldo_run(struct Scsi_Host *shpnt) if (TESTLO(SSTAT0, SELDO)) { scmd_printk(KERN_ERR, CURRENT_SC, "aha152x: passing bus free condition\n"); - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_NO_CONNECT); + done(shpnt, SAM_STAT_GOOD, DID_NO_CONNECT); return; } @@ -1561,15 +1555,12 @@ static void selto_run(struct Scsi_Host *shpnt) CURRENT_SC->SCp.phase &= ~selecting; if (CURRENT_SC->SCp.phase & aborted) - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_ABORT); + done(shpnt, SAM_STAT_GOOD, DID_ABORT); else if (TESTLO(SSTAT0, SELINGO)) - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_BUS_BUSY); + done(shpnt, SAM_STAT_GOOD, DID_BUS_BUSY); else /* ARBITRATION won, but SELECTION failed */ - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_NO_CONNECT); + done(shpnt, SAM_STAT_GOOD, DID_NO_CONNECT); } /* @@ -1903,8 +1894,7 @@ static void cmd_init(struct Scsi_Host *shpnt) if (CURRENT_SC->SCp.sent_command) { scmd_printk(KERN_ERR, CURRENT_SC, "command already sent\n"); - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_ERROR); + done(shpnt, SAM_STAT_GOOD, DID_ERROR); return; } @@ -2244,8 +2234,7 @@ static int update_state(struct Scsi_Host *shpnt) static void parerr_run(struct Scsi_Host *shpnt) { scmd_printk(KERN_ERR, CURRENT_SC, "parity error\n"); - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_PARITY); + done(shpnt, SAM_STAT_GOOD, DID_PARITY); } /* @@ -2268,7 +2257,7 @@ static void rsti_run(struct Scsi_Host *shpnt) kfree(ptr->host_scribble); ptr->host_scribble=NULL; - ptr->result = DID_RESET << 16; + set_host_byte(ptr, DID_RESET); ptr->scsi_done(ptr); } @@ -2276,8 +2265,7 @@ static void rsti_run(struct Scsi_Host *shpnt) } if(CURRENT_SC && !CURRENT_SC->device->soft_reset) - done(shpnt, SAM_STAT_GOOD, - COMMAND_COMPLETE, DID_RESET); + done(shpnt, SAM_STAT_GOOD, DID_RESET); }