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[1.160.226.215]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b08353e94asm52680715ad.25.2026.03.21.07.15.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Mar 2026 07:15:29 -0700 (PDT) From: Sean Chang To: Andrew Lunn , Chuck Lever , David Laight , Anna Schumaker , Andy Shevchenko Cc: netdev@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, Sean Chang Subject: [PATCH v5 1/5] sunrpc: Fix dprintk type mismatch using do-while(0) Date: Sat, 21 Mar 2026 22:15:06 +0800 Message-Id: <20260321141510.68214-2-seanwascoding@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260321141510.68214-1-seanwascoding@gmail.com> References: <20260321141510.68214-1-seanwascoding@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Following David Laight's suggestion, simplify the macro definitions by remo= ving the unnecessary 'fmt' argument and using no_printk(VA_ARGS) directly. To resolve a Sparse warning (void vs int mismatch) when dfprintk is used in conditional statements, wrap the non-debug definition in a do-while(0) bloc= k. This ensures the macro always evaluates to a void expression. Suggested-by: David Laight Signed-off-by: Sean Chang --- include/linux/sunrpc/debug.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h index ab61bed2f7af..f6f2a106eeaf 100644 --- a/include/linux/sunrpc/debug.h +++ b/include/linux/sunrpc/debug.h @@ -38,8 +38,6 @@ extern unsigned int nlm_debug; do { \ ifdebug(fac) \ __sunrpc_printk(fmt, ##__VA_ARGS__); \ - else \ - no_printk(fmt, ##__VA_ARGS__); \ } while (0) =20 # define dfprintk_rcu(fac, fmt, ...) \ @@ -48,15 +46,13 @@ do { \ rcu_read_lock(); \ __sunrpc_printk(fmt, ##__VA_ARGS__); \ rcu_read_unlock(); \ - } else { \ - no_printk(fmt, ##__VA_ARGS__); \ } \ } while (0) =20 #else # define ifdebug(fac) if (0) -# define dfprintk(fac, fmt, ...) no_printk(fmt, ##__VA_ARGS__) -# define dfprintk_rcu(fac, fmt, ...) no_printk(fmt, ##__VA_ARGS__) +# define dfprintk(fac, ...) no_printk(__VA_ARGS__) +# define dfprintk_rcu(fac, ...) no_printk(__VA_ARGS__) #endif =20 /* --=20 2.34.1