From 865a9e2c71e1bb111ad2f0ea36350014e1967d01 Mon Sep 17 00:00:00 2001
From: Simon Ruderich <simon@ruderich.org>
Date: Sat, 16 Jun 2018 20:58:35 +0200
Subject: [PATCH] kpatch-build: fix shellcheck warnings

shellcheck 0.4.7 reported the following errors:

    [  "$1" = "$(echo -e "$1\n$2" | sort -rV | head -n1)" ]
                            ^-- SC1117: Backslash is literal in "\n". Prefer explicit escaping: "\\n".

    grepname="$grepname\.o"
                       ^-- SC1117: Backslash is literal in "\.". Prefer explicit escaping: "\\.".

    grep "undefined reference" "$LOGFILE" | sed -r "s/^.*\`(.*)'$/\1/" \
                                                                  ^-- SC1117: Backslash is literal in "\1". Prefer explicit escaping: "\\1".

Signed-off-by: Simon Ruderich <simon@ruderich.org>
---
 kpatch-build/kpatch-build | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kpatch-build/kpatch-build b/kpatch-build/kpatch-build
index 10fc1bf..7d98d26 100755
--- a/kpatch-build/kpatch-build
+++ b/kpatch-build/kpatch-build
@@ -146,7 +146,7 @@ check_pipe_status() {
 
 # $1 >= $2
 version_gte() {
-	[  "$1" = "$(echo -e "$1\n$2" | sort -rV | head -n1)" ]
+	[  "$1" = "$(echo -e "$1\\n$2" | sort -rV | head -n1)" ]
 }
 
 is_rhel() {
@@ -308,7 +308,7 @@ find_parent_obj() {
 	pdir="${absdir#$pwddir/}"
 	file="$(basename "$1")"
 	grepname="${1%.o}"
-	grepname="$grepname\.o"
+	grepname="$grepname\\.o"
 	if [[ "$DEEP_FIND" -eq 1 ]]; then
 		num=0
 		if [[ -n "$last_deep_find" ]]; then
@@ -727,7 +727,7 @@ CROSS_COMPILE="$TOOLSDIR/kpatch-gcc " \
 	make "-j$CPUS" $TARGETS 2>&1 | logger || die
 
 # source.c:(.section+0xFF): undefined reference to `symbol'
-grep "undefined reference" "$LOGFILE" | sed -r "s/^.*\`(.*)'$/\1/" \
+grep "undefined reference" "$LOGFILE" | sed -r "s/^.*\`(.*)'$/\\1/" \
 	>"${TEMPDIR}"/undefined_references
 
 # WARNING: "symbol" [path/to/module.ko] undefined!