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From c6e0fc7a5ec0b890c35a3b5d4cc5e1f7794cc47f Mon Sep 17 00:00:00 2001
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From: Andrea Claudi <aclaudi@redhat.com>
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Date: Mon, 29 Apr 2019 20:07:22 +0200
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Subject: [PATCH] tc/m_gact: Drop dead code
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1465646
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Upstream Status: iproute2.git commit 73aa988868e7e
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Conflicts: context change due to missing commits:
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* e67aba5595811 ("tc: actions: add helpers to parse and print control actions")
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* 18f05d06016d9 ("tc: gact: fix control action parsing")
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commit 73aa988868e7e068b4fc0daaca7cfdb3e07fe744
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Author: Phil Sutter <phil@nwl.cc>
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Date: Thu Aug 17 19:09:31 2017 +0200
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tc/m_gact: Drop dead code
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The use of 'ok' variable in parse_gact() is ineffective: The second
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conditional increments it either if *argv is 'gact' or if
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parse_action_control() doesn't fail (in which case exit() is called).
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So this is effectively an unconditional increment and since no decrement
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happens anywhere, all remaining checks for 'ok != 0' can be dropped.
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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---
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tc/m_gact.c | 18 +++++-------------
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1 file changed, 5 insertions(+), 13 deletions(-)
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diff --git a/tc/m_gact.c b/tc/m_gact.c
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index 755a3bee2c2f2..0cb5222fd3817 100644
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--- a/tc/m_gact.c
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+++ b/tc/m_gact.c
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@@ -86,7 +86,6 @@ parse_gact(struct action_util *a, int *argc_p, char ***argv_p,
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{
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int argc = *argc_p;
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char **argv = *argv_p;
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- int ok = 0;
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int action = TC_POLICE_RECLASSIFY;
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struct tc_gact p = { .action = TC_POLICE_RECLASSIFY };
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#ifdef CONFIG_GACT_PROB
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@@ -100,25 +99,22 @@ parse_gact(struct action_util *a, int *argc_p, char ***argv_p,
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if (matches(*argv, "gact") == 0) {
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- ok++;
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+ argc--;
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+ argv++;
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} else {
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action = get_act(&argv);
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if (action != -10) {
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p.action = action;
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- ok++;
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+ argc--;
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+ argv++;
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} else {
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explain();
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return action;
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}
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}
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- if (ok) {
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- argc--;
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- argv++;
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- }
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-
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#ifdef CONFIG_GACT_PROB
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- if (ok && argc > 0) {
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+ if (argc > 0) {
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if (matches(*argv, "random") == 0) {
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rd = 1;
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NEXT_ARG();
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@@ -167,15 +163,11 @@ parse_gact(struct action_util *a, int *argc_p, char ***argv_p,
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}
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argc--;
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argv++;
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- ok++;
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} else if (matches(*argv, "help") == 0) {
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usage();
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}
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}
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- if (!ok)
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- return -1;
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-
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tail = NLMSG_TAIL(n);
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addattr_l(n, MAX_MSG, tca_id, NULL, 0);
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addattr_l(n, MAX_MSG, TCA_GACT_PARMS, &p, sizeof(p));
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--
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2.20.1
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