[PATCH] ncpfs: avoid unused variable warning

From: Arnd Bergmann
Date: Mon Jan 25 2016 - 10:33:55 EST

When CONFIG_NCPFS_NLS is not set, we get a harmless warning
about an unused local variable, because that is only passed
into a macro that does not evaluate its argument:

fs/ncpfs/dir.c:136:23: warning: unused variable 'sb' [-Wunused-variable]

This replaces the trivial macro with an equally trivial
inline function, which avoids the warning.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 621e155a3591 ("fs: change d_compare for rcu-walk")
fs/ncpfs/ncplib_kernel.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/ncpfs/ncplib_kernel.h b/fs/ncpfs/ncplib_kernel.h
index 5233fbc1747a..2bbd70f26d0a 100644
--- a/fs/ncpfs/ncplib_kernel.h
+++ b/fs/ncpfs/ncplib_kernel.h
@@ -148,7 +148,10 @@ int ncp__io2vol(unsigned char *, unsigned int *,
int ncp__vol2io(unsigned char *, unsigned int *,
const unsigned char *, unsigned int, int);

-#define NCP_IO_TABLE(sb) NULL
+static inline struct nls_table *NCP_IO_TABLE(struct super_block *sb)
+ return NULL;
#define ncp_tolower(t, c) tolower(c)
#define ncp_toupper(t, c) toupper(c)
#define ncp_io2vol(S,m,i,n,k,U) ncp__io2vol(m,i,n,k,U)