83 lines
2.8 KiB
Diff
83 lines
2.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Thu, 17 Feb 2022 17:24:25 +0100
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Subject: [PATCH] libmultipath: use bus_protocol_id() in
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snprint_path_protocol()
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Simplify bus_protocol_id() by using the linear ordering.
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/print.c | 56 +++++++++++++++++---------------------------
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1 file changed, 21 insertions(+), 35 deletions(-)
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diff --git a/libmultipath/print.c b/libmultipath/print.c
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index 298b3764..ff4d1854 100644
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--- a/libmultipath/print.c
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+++ b/libmultipath/print.c
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@@ -662,41 +662,27 @@ snprint_path_failures(char * buff, size_t len, const struct path * pp)
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int
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snprint_path_protocol(char * buff, size_t len, const struct path * pp)
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{
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- switch (pp->bus) {
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- case SYSFS_BUS_SCSI:
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- switch (pp->sg_id.proto_id) {
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- case SCSI_PROTOCOL_FCP:
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- return snprintf(buff, len, "scsi:fcp");
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- case SCSI_PROTOCOL_SPI:
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- return snprintf(buff, len, "scsi:spi");
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- case SCSI_PROTOCOL_SSA:
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- return snprintf(buff, len, "scsi:ssa");
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- case SCSI_PROTOCOL_SBP:
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- return snprintf(buff, len, "scsi:sbp");
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- case SCSI_PROTOCOL_SRP:
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- return snprintf(buff, len, "scsi:srp");
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- case SCSI_PROTOCOL_ISCSI:
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- return snprintf(buff, len, "scsi:iscsi");
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- case SCSI_PROTOCOL_SAS:
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- return snprintf(buff, len, "scsi:sas");
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- case SCSI_PROTOCOL_ADT:
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- return snprintf(buff, len, "scsi:adt");
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- case SCSI_PROTOCOL_ATA:
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- return snprintf(buff, len, "scsi:ata");
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- case SCSI_PROTOCOL_UNSPEC:
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- default:
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- return snprintf(buff, len, "scsi:unspec");
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- }
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- case SYSFS_BUS_CCW:
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- return snprintf(buff, len, "ccw");
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- case SYSFS_BUS_CCISS:
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- return snprintf(buff, len, "cciss");
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- case SYSFS_BUS_NVME:
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- return snprintf(buff, len, "nvme");
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- case SYSFS_BUS_UNDEF:
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- default:
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- return snprintf(buff, len, "undef");
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- }
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+ static const char * const protocol_name[LAST_BUS_PROTOCOL_ID + 1] = {
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+ [SYSFS_BUS_UNDEF] = "undef",
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+ [SYSFS_BUS_CCW] = "ccw",
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+ [SYSFS_BUS_CCISS] = "cciss",
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+ [SYSFS_BUS_NVME] = "nvme",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_FCP] = "scsi:fcp",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_SPI] = "scsi:spi",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_SSA] = "scsi:ssa",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_SBP] = "scsi:sbp",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_SRP] = "scsi:srp",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_ISCSI] = "scsi:iscsi",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_SAS] = "scsi:sas",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_ADT] = "scsi:adt",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_ATA] = "scsi:ata",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_USB] = "scsi:usb",
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+ [SYSFS_BUS_SCSI + SCSI_PROTOCOL_UNSPEC] = "scsi:unspec",
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+ };
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+ const char *pn = protocol_name[bus_protocol_id(pp)];
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+
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+ assert(pn != NULL);
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+ return snprintf(buff, len, "%s", pn);
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}
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int
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