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From 3960c91ade7b1ca9979eec5200a90dc11f339cfd Mon Sep 17 00:00:00 2001
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From: Ido Schimmel <idosch@nvidia.com>
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Date: Tue, 14 Sep 2021 14:27:37 +0300
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Subject: [PATCH 04/35] ethtool: Fix compilation warning when pretty dump is
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disabled
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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When pretty dump is disabled (i.e., configure --disable-pretty-dump),
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gcc 11.2.1 emits the following warning:
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ethtool.c: In function ‘dump_regs’:
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ethtool.c:1160:31: warning: comparison is always false due to limited range of data type [-Wtype-limits]
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1160 | for (i = 0; i < ARRAY_SIZE(driver_list); i++)
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| ^
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Fix it by avoiding iterating over 'driver_list' when pretty dump is
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disabled.
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Signed-off-by: Ido Schimmel <idosch@nvidia.com>
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---
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ethtool.c | 13 ++++++++-----
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1 file changed, 8 insertions(+), 5 deletions(-)
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diff --git a/ethtool.c b/ethtool.c
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index 33a0a492cb15..1b79e9f8d958 100644
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--- a/ethtool.c
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+++ b/ethtool.c
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@@ -1089,12 +1089,12 @@ static int parse_hkey(char **rss_hkey, u32 key_size,
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return 0;
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}
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+#ifdef ETHTOOL_ENABLE_PRETTY_DUMP
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static const struct {
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const char *name;
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int (*func)(struct ethtool_drvinfo *info, struct ethtool_regs *regs);
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} driver_list[] = {
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-#ifdef ETHTOOL_ENABLE_PRETTY_DUMP
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{ "8139cp", realtek_dump_regs },
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{ "8139too", realtek_dump_regs },
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{ "r8169", realtek_dump_regs },
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@@ -1129,8 +1129,8 @@ static const struct {
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{ "fec", fec_dump_regs },
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{ "igc", igc_dump_regs },
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{ "bnxt_en", bnxt_dump_regs },
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-#endif
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};
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+#endif
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void dump_hex(FILE *file, const u8 *data, int len, int offset)
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{
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@@ -1149,14 +1149,15 @@ void dump_hex(FILE *file, const u8 *data, int len, int offset)
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static int dump_regs(int gregs_dump_raw, int gregs_dump_hex,
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struct ethtool_drvinfo *info, struct ethtool_regs *regs)
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{
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- unsigned int i;
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-
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if (gregs_dump_raw) {
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fwrite(regs->data, regs->len, 1, stdout);
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goto nested;
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}
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- if (!gregs_dump_hex)
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+#ifdef ETHTOOL_ENABLE_PRETTY_DUMP
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+ if (!gregs_dump_hex) {
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+ unsigned int i;
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+
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for (i = 0; i < ARRAY_SIZE(driver_list); i++)
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if (!strncmp(driver_list[i].name, info->driver,
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ETHTOOL_BUSINFO_LEN)) {
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@@ -1168,6 +1169,8 @@ static int dump_regs(int gregs_dump_raw, int gregs_dump_hex,
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*/
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break;
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}
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+ }
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+#endif
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dump_hex(stdout, regs->data, regs->len, 0);
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--
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2.35.1
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