linux-kernel - [PATCHv2 1/2] locking/atomics: Change 'fold' to 'grep'

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Message-Id: <20190211132213.15249-2-mark.rutland@arm.com>
Date:   Mon, 11 Feb 2019 13:22:12 +0000
From:   Mark Rutland <mark.rutland@....com>
To:     linux-kernel@...r.kernel.org, mingo@...nel.org
Cc:     akpm@...ux-foundation.org, anders.roxell@...aro.org,
        boqun.feng@...il.com, mark.rutland@....com,
        naresh.kamboju@...aro.org, peterz@...radead.org,
        will.deacon@....com
Subject: [PATCHv2 1/2] locking/atomics: Change 'fold' to 'grep'

From: Anders Roxell <anders.roxell@...aro.org>

Some distibutions and build systems doesn't include 'fold' from
coreutils default.

.../scripts/atomic/atomic-tbl.sh: line 183: fold: command not found

Rework to use 'grep' instead of 'fold' to use a dependency that is
already used a lot in the kernel.

Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>
Suggested-by: Will Deacon <will.deacon@....com>
Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
[Mark: rework commit message]
Signed-off-by: Mark Rutland <mark.rutland@....com>
Acked-by: Will Deacon <will.deacon@....com>
---
 scripts/atomic/atomic-tbl.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/atomic/atomic-tbl.sh b/scripts/atomic/atomic-tbl.sh
index 9d6be538a987..81d5c32039dd 100755
--- a/scripts/atomic/atomic-tbl.sh
+++ b/scripts/atomic/atomic-tbl.sh
@@ -180,7 +180,7 @@ gen_proto_variants()
 #gen_proto(meta, ...)
 gen_proto() {
 	local meta="$1"; shift
-	for m in $(echo "${meta}" | fold -w1); do
+	for m in $(echo "${meta}" | grep -o .); do
 		gen_proto_variants "${m}" "$@"
 	done
 }
-- 
2.11.0