linux-kernel - [PATCH 04/11] ARC: atomic64: LLSC: elide unused atomic_{and,or,xor,andnot}

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: <20210804191554.1252776-5-vgupta@synopsys.com>
Date:   Wed,  4 Aug 2021 12:15:47 -0700
From:   Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:     linux-snps-arc@...ts.infradead.org
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        Vladimir Isaev <Vladimir.Isaev@...opsys.com>,
        Vineet Gupta <Vineet.Gupta1@...opsys.com>
Subject: [PATCH 04/11] ARC: atomic64: LLSC: elide unused atomic_{and,or,xor,andnot}_return

This is a non-functional change since those wrappers are not
used in kernel sources at all.

Link: http://lists.infradead.org/pipermail/linux-snps-arc/2018-August/004246.html
Suggested-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Signed-off-by: Vineet Gupta <vgupta@...opsys.com>
---
 arch/arc/include/asm/atomic64-arcv2.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arc/include/asm/atomic64-arcv2.h b/arch/arc/include/asm/atomic64-arcv2.h
index 53996b11b551..22ef1cbb94e2 100644
--- a/arch/arc/include/asm/atomic64-arcv2.h
+++ b/arch/arc/include/asm/atomic64-arcv2.h
@@ -116,6 +116,12 @@ static inline s64 arch_atomic64_fetch_##op(s64 a, atomic64_t *v)	\
 
 ATOMIC64_OPS(add, add.f, adc)
 ATOMIC64_OPS(sub, sub.f, sbc)
+
+#undef ATOMIC64_OPS
+#define ATOMIC64_OPS(op, op1, op2)					\
+	ATOMIC64_OP(op, op1, op2)					\
+	ATOMIC64_FETCH_OP(op, op1, op2)
+
 ATOMIC64_OPS(and, and, and)
 ATOMIC64_OPS(andnot, bic, bic)
 ATOMIC64_OPS(or, or, or)
-- 
2.25.1