linux-kernel - [PATCH] powerpc: add const qual to local

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Message-Id: <20191108141353.193961-1-edumazet@google.com>
Date:   Fri,  8 Nov 2019 06:13:53 -0800
From:   Eric Dumazet <edumazet@...gle.com>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        kbuild test robot <lkp@...el.com>
Subject: [PATCH] powerpc: add const qual to local_read() parameter

A patch in net-next triggered a compile error on powerpc.

This seems reasonable to relax powerpc local_read() requirements.

Fixes: 316580b69d0a ("u64_stats: provide u64_stats_t type")
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Reported-by: kbuild test robot <lkp@...el.com>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Paul Mackerras <paulus@...ba.org>
Cc:	Michael Ellerman <mpe@...erman.id.au>
Cc:	linuxppc-dev@...ts.ozlabs.org
---
 arch/powerpc/include/asm/local.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
index fdd00939270bf08113b537a090d6a6e34a048361..bc4bd19b7fc235b80ec1132f44409b6fe1057975 100644
--- a/arch/powerpc/include/asm/local.h
+++ b/arch/powerpc/include/asm/local.h
@@ -17,7 +17,7 @@ typedef struct
 
 #define LOCAL_INIT(i)	{ (i) }
 
-static __inline__ long local_read(local_t *l)
+static __inline__ long local_read(const local_t *l)
 {
 	return READ_ONCE(l->v);
 }
-- 
2.24.0.432.g9d3f5f5b63-goog