linux-kernel - [PATCH 16/26] locking/atomic: scripts: factor out order template generation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230522122429.1915021-17-mark.rutland@arm.com>
Date:   Mon, 22 May 2023 13:24:19 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     linux-kernel@...r.kernel.org
Cc:     akiyks@...il.com, boqun.feng@...il.com, corbet@....net,
        keescook@...omium.org, linux-arch@...r.kernel.org,
        linux@...linux.org.uk, linux-doc@...r.kernel.org,
        mark.rutland@....com, paulmck@...nel.org, peterz@...radead.org,
        sstabellini@...nel.org, will@...nel.org
Subject: [PATCH 16/26] locking/atomic: scripts: factor out order template generation

Currently gen_proto_order_variants() hard codes the path for the templates used
for order fallbacks. Factor this out into a helper so that it can be reused
elsewhere.

This results in no change to the generated headers, so there should be
no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@....com>
Cc: Will Deacon <will@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Paul E. McKenney <paulmck@...nel.org>
---
 scripts/atomic/gen-atomic-fallback.sh | 34 +++++++++++++--------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/scripts/atomic/gen-atomic-fallback.sh b/scripts/atomic/gen-atomic-fallback.sh
index 7a6bcea8f565b..337330865fa2e 100755
--- a/scripts/atomic/gen-atomic-fallback.sh
+++ b/scripts/atomic/gen-atomic-fallback.sh
@@ -32,6 +32,20 @@ gen_template_fallback()
 	fi
 }
 
+#gen_order_fallback(meta, pfx, name, sfx, order, atomic, int, args...)
+gen_order_fallback()
+{
+	local meta="$1"; shift
+	local pfx="$1"; shift
+	local name="$1"; shift
+	local sfx="$1"; shift
+	local order="$1"; shift
+
+	local tmpl_order=${order#_}
+	local tmpl="${ATOMICDIR}/fallbacks/${tmpl_order:-fence}"
+	gen_template_fallback "${tmpl}" "${meta}" "${pfx}" "${name}" "${sfx}" "${order}" "$@"
+}
+
 #gen_proto_fallback(meta, pfx, name, sfx, order, atomic, int, args...)
 gen_proto_fallback()
 {
@@ -56,20 +70,6 @@ cat << EOF
 EOF
 }
 
-gen_proto_order_variant()
-{
-	local meta="$1"; shift
-	local pfx="$1"; shift
-	local name="$1"; shift
-	local sfx="$1"; shift
-	local order="$1"; shift
-	local atomic="$1"
-
-	local basename="arch_${atomic}_${pfx}${name}${sfx}"
-
-	printf "#define ${basename}${order} ${basename}${order}\n"
-}
-
 #gen_proto_order_variants(meta, pfx, name, sfx, atomic, int, args...)
 gen_proto_order_variants()
 {
@@ -117,9 +117,9 @@ gen_proto_order_variants()
 
 	printf "#else /* ${basename}_relaxed */\n\n"
 
-	gen_template_fallback "${ATOMICDIR}/fallbacks/acquire"  "${meta}" "${pfx}" "${name}" "${sfx}" "_acquire" "$@"
-	gen_template_fallback "${ATOMICDIR}/fallbacks/release"  "${meta}" "${pfx}" "${name}" "${sfx}" "_release" "$@"
-	gen_template_fallback "${ATOMICDIR}/fallbacks/fence"  "${meta}" "${pfx}" "${name}" "${sfx}" "" "$@"
+	gen_order_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "_acquire" "$@"
+	gen_order_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "_release" "$@"
+	gen_order_fallback "${meta}" "${pfx}" "${name}" "${sfx}" "" "$@"
 
 	printf "#endif /* ${basename}_relaxed */\n\n"
 }
-- 
2.30.2