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Date: Fri, 8 Jun 2012 19:25:12 +0100
From: Ben Hutchings <bhutchings@...arflare.com>
To: <netdev@...r.kernel.org>
Subject: [PATCH ethtool] Make link mode listing in dump_link_caps() a
data-driven loop
I've committed the following change.
Ben.
---
This removes lots of repeated code and makes it trivial to support
additional modes.
Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
---
ethtool.c | 99 +++++++++++++++++++------------------------------------------
1 files changed, 31 insertions(+), 68 deletions(-)
diff --git a/ethtool.c b/ethtool.c
index f09a032..3576f4c 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -444,8 +444,25 @@ static void dump_supported(struct ethtool_cmd *ep)
static void
dump_link_caps(const char *prefix, const char *an_prefix, u32 mask)
{
+ static const struct {
+ int same_line; /* print on same line as previous */
+ u32 value;
+ const char *name;
+ } mode_defs[] = {
+ { 0, ADVERTISED_10baseT_Half, "10baseT/Half" },
+ { 1, ADVERTISED_10baseT_Full, "10baseT/Full" },
+ { 0, ADVERTISED_100baseT_Half, "100baseT/Half" },
+ { 1, ADVERTISED_100baseT_Full, "100baseT/Full" },
+ { 0, ADVERTISED_1000baseT_Half, "1000baseT/Half" },
+ { 1, ADVERTISED_1000baseT_Full, "1000baseT/Full" },
+ { 0, ADVERTISED_1000baseKX_Full, "1000baseKX/Full" },
+ { 0, ADVERTISED_2500baseX_Full, "2500baseX/Full" },
+ { 0, ADVERTISED_10000baseT_Full, "10000baseT/Full" },
+ { 0, ADVERTISED_10000baseKX4_Full, "10000baseKX4/Full" },
+ { 0, ADVERTISED_20000baseMLD2_Full, "20000baseMLD2/Full" },
+ };
int indent;
- int did1;
+ int did1, new_line_pend, i;
/* Indent just like the separate functions used to */
indent = strlen(prefix) + 14;
@@ -455,73 +472,19 @@ dump_link_caps(const char *prefix, const char *an_prefix, u32 mask)
fprintf(stdout, " %s link modes:%*s", prefix,
indent - (int)strlen(prefix) - 12, "");
did1 = 0;
- if (mask & ADVERTISED_10baseT_Half) {
- did1++; fprintf(stdout, "10baseT/Half ");
- }
- if (mask & ADVERTISED_10baseT_Full) {
- did1++; fprintf(stdout, "10baseT/Full ");
- }
- if (did1 && (mask & (ADVERTISED_100baseT_Half|ADVERTISED_100baseT_Full))) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_100baseT_Half) {
- did1++; fprintf(stdout, "100baseT/Half ");
- }
- if (mask & ADVERTISED_100baseT_Full) {
- did1++; fprintf(stdout, "100baseT/Full ");
- }
- if (did1 && (mask & (ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full))) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_1000baseT_Half) {
- did1++; fprintf(stdout, "1000baseT/Half ");
- }
- if (mask & ADVERTISED_1000baseT_Full) {
- did1++; fprintf(stdout, "1000baseT/Full ");
- }
- if (did1 && (mask & ADVERTISED_1000baseKX_Full)) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_1000baseKX_Full) {
- did1++; fprintf(stdout, "1000baseKX/Full ");
- }
- if (did1 && (mask & ADVERTISED_2500baseX_Full)) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_2500baseX_Full) {
- did1++; fprintf(stdout, "2500baseX/Full ");
- }
- if (did1 && (mask & ADVERTISED_10000baseT_Full)) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_10000baseT_Full) {
- did1++; fprintf(stdout, "10000baseT/Full ");
- }
- if (did1 && (mask & ADVERTISED_10000baseKX4_Full)) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_10000baseKX4_Full) {
- did1++; fprintf(stdout, "10000baseKX4/Full ");
- }
- if (did1 && (mask & ADVERTISED_20000baseMLD2_Full)) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_20000baseMLD2_Full) {
- did1++; fprintf(stdout, "20000baseMLD2/Full ");
- }
- if (did1 && (mask & ADVERTISED_20000baseKR2_Full)) {
- fprintf(stdout, "\n");
- fprintf(stdout, " %*s", indent, "");
- }
- if (mask & ADVERTISED_20000baseKR2_Full) {
- did1++; fprintf(stdout, "20000baseKR2/Full ");
+ new_line_pend = 0;
+ for (i = 0; i < ARRAY_SIZE(mode_defs); i++) {
+ if (did1 && !mode_defs[i].same_line)
+ new_line_pend = 1;
+ if (mask & mode_defs[i].value) {
+ if (new_line_pend) {
+ fprintf(stdout, "\n");
+ fprintf(stdout, " %*s", indent, "");
+ new_line_pend = 0;
+ }
+ did1++;
+ fprintf(stdout, "%s ", mode_defs[i].name);
+ }
}
if (did1 == 0)
fprintf(stdout, "Not reported");
--
1.7.7.6
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
--
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