locking/atomics: Change 'fold' to 'grep'

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.

[Mark: rework commit message]

Suggested-by: Will Deacon <[email protected]>
Reported-by: Naresh Kamboju <[email protected]>
Signed-off-by: Anders Roxell <[email protected]>
Signed-off-by: Mark Rutland <[email protected]>
Acked-by: Will Deacon <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>

1 files changed, 1 insertions, 1 deletions

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
 }