linux-kernel - [PATCH RFC 44/77] lpfc: Make MSI-X initialization routine more readable

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Message-Id: <f3a2e684c57fb47c8f789b0aca078d90c0e52878.1380703263.git.agordeev@redhat.com>
Date:	Wed,  2 Oct 2013 12:49:00 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Alexander Gordeev <agordeev@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Michael Ellerman <michael@...erman.id.au>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Ingo Molnar <mingo@...hat.com>, Tejun Heo <tj@...nel.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Andy King <acking@...are.com>, Jon Mason <jon.mason@...el.com>,
	Matt Porter <mporter@...nel.crashing.org>,
	stable@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-mips@...ux-mips.org, linuxppc-dev@...ts.ozlabs.org,
	linux390@...ibm.com, linux-s390@...r.kernel.org, x86@...nel.org,
	linux-ide@...r.kernel.org, iss_storagedev@...com,
	linux-nvme@...ts.infradead.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	linux-driver@...gic.com,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	"VMware, Inc." <pv-drivers@...are.com>, linux-scsi@...r.kernel.org
Subject: [PATCH RFC 44/77] lpfc: Make MSI-X initialization routine more readable

Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
---
 drivers/scsi/lpfc/lpfc_init.c |   23 +++++++++++------------
 1 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 0ec8008..0cfaf20 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -8633,10 +8633,6 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
 {
 	int vectors, rc, index;
 
-	/* Set up MSI-X multi-message vectors */
-	for (index = 0; index < phba->cfg_fcp_io_channel; index++)
-		phba->sli4_hba.msix_entries[index].entry = index;
-
 	/* Configure MSI-X capability structure */
 	vectors = phba->cfg_fcp_io_channel;
 
@@ -8650,14 +8646,14 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
 		goto msg_fail_out;
 	}
 
+	/* Set up MSI-X multi-message vectors */
+	for (index = 0; index < vectors; index++)
+		phba->sli4_hba.msix_entries[index].entry = index;
+
 	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
 			     vectors);
-	if (rc) {
-msg_fail_out:
-		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0484 PCI enable MSI-X failed (%d)\n", rc);
-		goto vec_fail_out;
-	}
+	if (rc)
+		goto msg_fail_out;
 
 	/* Log MSI-X vector assignment */
 	for (index = 0; index < vectors; index++)
@@ -8697,7 +8693,7 @@ msg_fail_out:
 	}
 
 	lpfc_sli4_set_affinity(phba, vectors);
-	return rc;
+	return 0;
 
 cfg_fail_out:
 	/* free the irq already requested */
@@ -8710,8 +8706,11 @@ cfg_fail_out:
 
 	/* Unconfigure MSI-X capability structure */
 	pci_disable_msix(phba->pcidev);
+	return rc;
 
-vec_fail_out:
+msg_fail_out:
+	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+			"0484 PCI enable MSI-X failed (%d)\n", rc);
 	return rc;
 }
 
-- 
1.7.7.6

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