linux-kernel - [PATCH 03/19] powerpc: Mark variables as unused

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Message-Id: <20180322202007.23088-4-malat@debian.org>
Date:   Thu, 22 Mar 2018 21:19:49 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        kvm-ppc@...r.kernel.org
Subject: [PATCH 03/19] powerpc: Mark variables as unused

Add gcc attribute unused for two variables. Fix warnings treated as errors
with W=1:

  arch/powerpc/kernel/prom_init.c:1388:8: error: variable ‘path’ set but not used [-Werror=unused-but-set-variable]

Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
 arch/powerpc/kernel/prom_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index acf4b2e0530c..6a3ac4522144 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -603,7 +603,7 @@ static void __init early_cmdline_parse(void)
 	const char *opt;
 
 	char *p;
-	int l = 0;
+	int l __maybe_unused = 0;
 
 	prom_cmd_line[0] = 0;
 	p = prom_cmd_line;
@@ -1385,7 +1385,7 @@ static void __init reserve_mem(u64 base, u64 size)
 static void __init prom_init_mem(void)
 {
 	phandle node;
-	char *path, type[64];
+	char *path __maybe_unused, type[64];
 	unsigned int plen;
 	cell_t *p, *endp;
 	__be32 val;
-- 
2.11.0