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[1.160.203.78]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35900700e69sm9053211a91.0.2026.02.27.07.26.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Feb 2026 07:26:55 -0800 (PST) From: Sean Chang To: Andrew Lunn , nicolas.ferre@microchip.com, claudiu.beznea@tuxon.dev, trond.myklebust@hammerspace.com, anna@kernel.org Cc: netdev@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, Sean Chang Subject: [PATCH v4 1/2] sunrpc: fix unused variable warnings by using no_printk Date: Fri, 27 Feb 2026 23:26:23 +0800 Message-Id: <20260227152624.164964-2-seanwascoding@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260227152624.164964-1-seanwascoding@gmail.com> References: <20260227152624.164964-1-seanwascoding@gmail.com> Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit When CONFIG_SUNRPC_DEBUG is disabled, the dfprintk() macros currently expand to empty do-while loops. This causes variables used solely within these calls to appear unused, triggering -Wunused-variable warnings. Instead of marking every affected variable with __maybe_unused, update the dfprintk and dfprintk_rcu stubs to use no_printk(). This allows the compiler to see the variables and perform type checking without emitting any code, thus silencing the warnings globally for these macros. Suggested-by: Andrew Lunn Signed-off-by: Sean Chang --- include/linux/sunrpc/debug.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h index eb4bd62df319..55c54df8bc7d 100644 --- a/include/linux/sunrpc/debug.h +++ b/include/linux/sunrpc/debug.h @@ -52,8 +52,8 @@ do { \ # define RPC_IFDEBUG(x) x #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__) # define RPC_IFDEBUG(x) #endif -- 2.34.1