linux-kernel - [PATCH v4 1/3] scripts: coccicheck: Add quotes to improve portability

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Date:   Sun, 11 Oct 2020 15:58:43 +0530
From:   Sumera Priyadarsini <sylphrenadin@...il.com>
To:     Julia.Lawall@...6.fr
Cc:     corbet@....net, Gilles.Muller@...6.fr, nicolas.palix@...g.fr,
        michal.lkml@...kovi.net, cocci@...teme.lip6.fr,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: [PATCH v4 1/3] scripts: coccicheck: Add quotes to improve portability

While fetching the number of threads per core with lscpu,
the [:digit:] set is used for translation of digits from 0-9.
However, using [:digit:] instead of "[:digit:]" does not seem
to work uniformly for some shell types and configurations
(such as zsh).

Therefore, modify coccicheck to use double quotes around the
[:digit:] set for uniformity and better portability.

Signed-off-by: Sumera Priyadarsini <sylphrenadin@...il.com>
---
 scripts/coccicheck | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/coccicheck b/scripts/coccicheck
index 6789751607f5..d67907b8a38b 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -76,7 +76,7 @@ else
     fi
 
     # Use only one thread per core by default if hyperthreading is enabled
-    THREADS_PER_CORE=$(lscpu | grep "Thread(s) per core: " | tr -cd [:digit:])
+    THREADS_PER_CORE=$(lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]")
     if [ -z "$J" ]; then
         NPROC=$(getconf _NPROCESSORS_ONLN)
 	if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 2 ] ; then
-- 
2.25.1