Clang compiler is not happy about set but unused variables: .../flexfilelayout/flexfilelayoutdev.c:56:9: error: variable 'ret' set but not used [-Werror,-Wunused-but-set-variable] .../flexfilelayout/flexfilelayout.c:1505:6: error: variable 'err' set but not used [-Werror,-Wunused-but-set-variable] .../nfs4proc.c:9244:12: error: variable 'ptr' set but not used [-Werror,-Wunused-but-set-variable] Fix these by forwarding parameters of dprintk() to no_printk(). The positive side-effect is a format-string checker enabled even for the cases when dprintk() is no-op. Fixes: d67ae825a59d ("pnfs/flexfiles: Add the FlexFile Layout Driver") Fixes: fc931582c260 ("nfs41: create_session operation") Acked-by: Geert Uytterhoeven Signed-off-by: Andy Shevchenko --- fs/lockd/svclock.c | 5 +++++ include/linux/sunrpc/debug.h | 8 ++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index 712df1e025d8..dcd3e0b4d997 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -80,6 +80,11 @@ static const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie) return buf; } +#else +static inline const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie) +{ + return "???"; +} #endif /* diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h index e947d668f7b7..82239d5c262e 100644 --- a/include/linux/sunrpc/debug.h +++ b/include/linux/sunrpc/debug.h @@ -40,6 +40,8 @@ extern unsigned int nlm_debug; do { \ ifdebug(fac) \ __sunrpc_printk(fmt, ##__VA_ARGS__); \ + else \ + no_printk(fmt, ##__VA_ARGS__); \ } while (0) # define dfprintk_rcu(fac, fmt, ...) \ @@ -48,13 +50,15 @@ do { \ rcu_read_lock(); \ __sunrpc_printk(fmt, ##__VA_ARGS__); \ rcu_read_unlock(); \ + } else { \ + no_printk(fmt, ##__VA_ARGS__); \ } \ } while (0) #else # define ifdebug(fac) if (0) -# define dfprintk(fac, fmt, ...) do {} while (0) -# define dfprintk_rcu(fac, fmt, ...) do {} while (0) +# define dfprintk(fac, fmt, ...) no_printk(fmt, ##__VA_ARGS__) +# define dfprintk_rcu(fac, fmt, ...) no_printk(fmt, ##__VA_ARGS__) #endif /* -- 2.50.1