From: Hannes Reinecke Date: Tue, 27 Apr 2021 08:30:26 +0000 (+0200) Subject: scsi: qlogicfas408: make ql_pcmd() a void function X-Git-Tag: v5.15~733^2~133^2~20 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9a588d239f2392fca24aa9e95d2a9174048db8e9;p=platform%2Fkernel%2Flinux-starfive.git scsi: qlogicfas408: make ql_pcmd() a void function Make ql_pcmd() a void function and set the SCSI result directly. [mkp: fix zeroday 'result' warning] Link: https://lore.kernel.org/r/20210427083046.31620-21-hare@suse.de Signed-off-by: Hannes Reinecke Signed-off-by: Martin K. Petersen fix --- diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c index 136681a..ab5e311 100644 --- a/drivers/scsi/qlogicfas408.c +++ b/drivers/scsi/qlogicfas408.c @@ -256,11 +256,10 @@ static void ql_icmd(struct scsi_cmnd *cmd) * Process scsi command - usually after interrupt */ -static unsigned int ql_pcmd(struct scsi_cmnd *cmd) +static void ql_pcmd(struct scsi_cmnd *cmd) { unsigned int i, j; unsigned long k; - unsigned int result; /* ultimate return result */ unsigned int status; /* scsi returned status */ unsigned int message; /* scsi returned message */ unsigned int phase; /* recorded scsi phase */ @@ -274,13 +273,15 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd) j = inb(qbase + 6); i = inb(qbase + 5); if (i == 0x20) { - return (DID_NO_CONNECT << 16); + set_host_byte(cmd, DID_NO_CONNECT); + return; } i |= inb(qbase + 5); /* the 0x10 bit can be set after the 0x08 */ if (i != 0x18) { printk(KERN_ERR "Ql:Bad Interrupt status:%02x\n", i); ql_zap(priv); - return (DID_BAD_INTR << 16); + set_host_byte(cmd, DID_BAD_INTR); + return; } j &= 7; /* j = inb( qbase + 7 ) >> 5; */ @@ -293,9 +294,10 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd) printk(KERN_ERR "Ql:Bad sequence for command %d, int %02X, cmdleft = %d\n", j, i, inb(qbase + 7) & 0x1f); ql_zap(priv); - return (DID_ERROR << 16); + set_host_byte(cmd, DID_ERROR); + return; } - result = DID_OK; + if (inb(qbase + 7) & 0x1f) /* if some bytes in fifo */ outb(1, qbase + 3); /* clear fifo */ /* note that request_bufflen is the total xfer size when sg is used */ @@ -314,21 +316,24 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd) scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) { if (priv->qabort) { REG0; - return ((priv->qabort == 1 ? - DID_ABORT : DID_RESET) << 16); + set_host_byte(cmd, + priv->qabort == 1 ? + DID_ABORT : DID_RESET); } buf = sg_virt(sg); if (ql_pdma(priv, phase, buf, sg->length)) break; } REG0; - rtrc(2) + rtrc(2); /* * Wait for irq (split into second state of irq handler * if this can take time) */ - if ((k = ql_wai(priv))) - return (k << 16); + if ((k = ql_wai(priv))) { + set_host_byte(cmd, k); + return; + } k = inb(qbase + 5); /* should be 0x10, bus service */ } @@ -344,19 +349,25 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd) if (time_after_eq(jiffies, k)) { ql_zap(priv); - return (DID_TIME_OUT << 16); + set_host_byte(cmd, DID_TIME_OUT); + return; } /* FIXME: timeout ?? */ while (inb(qbase + 5)) cpu_relax(); /* clear pending ints */ - if (priv->qabort) - return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16); + if (priv->qabort) { + set_host_byte(cmd, + priv->qabort == 1 ? DID_ABORT : DID_RESET); + return; + } outb(0x11, qbase + 3); /* get status and message */ - if ((k = ql_wai(priv))) - return (k << 16); + if ((k = ql_wai(priv))) { + set_host_byte(cmd, k); + return; + } i = inb(qbase + 5); /* get chip irq stat */ j = inb(qbase + 7) & 0x1f; /* and bytes rec'd */ status = inb(qbase + 2); @@ -368,12 +379,14 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd) */ if (!((i == 8 && j == 2) || (i == 0x10 && j == 1))) { printk(KERN_ERR "Ql:Error during status phase, int=%02X, %d bytes recd\n", i, j); - result = DID_ERROR; + set_host_byte(cmd, DID_ERROR); } outb(0x12, qbase + 3); /* done, disconnect */ - rtrc(1) - if ((k = ql_wai(priv))) - return (k << 16); + rtrc(1); + if ((k = ql_wai(priv))) { + set_host_byte(cmd, k); + return; + } /* * Should get bus service interrupt and disconnect interrupt @@ -385,12 +398,19 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd) cpu_relax(); i |= inb(qbase + 5); } - rtrc(0) + rtrc(0); - if (priv->qabort) - return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16); - - return (result << 16) | (message << 8) | (status & STATUS_MASK); + if (priv->qabort) { + set_host_byte(cmd, + priv->qabort == 1 ? DID_ABORT : DID_RESET); + return; + } + + set_host_byte(cmd, DID_OK); + if (message != COMMAND_COMPLETE) + scsi_msg_to_host_byte(cmd, message); + set_status_byte(cmd, status); + return; } /* @@ -415,7 +435,7 @@ static void ql_ihandl(void *dev_id) return; } icmd = priv->qlcmd; - icmd->result = ql_pcmd(icmd); + ql_pcmd(icmd); priv->qlcmd = NULL; /* * If result is CHECK CONDITION done calls qcommand to request @@ -443,8 +463,11 @@ static int qlogicfas408_queuecommand_lck(struct scsi_cmnd *cmd, void (*done) (struct scsi_cmnd *)) { struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd); + + set_host_byte(cmd, DID_OK); + set_status_byte(cmd, SAM_STAT_GOOD); if (scmd_id(cmd) == priv->qinitid) { - cmd->result = DID_BAD_TARGET << 16; + set_host_byte(cmd, DID_BAD_TARGET); done(cmd); return 0; }