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Fri, 06 Nov 2020 13:37:19 -0800 (PST) Received: from dell.default ([91.110.221.236]) by smtp.gmail.com with ESMTPSA id d16sm3984942wrw.17.2020.11.06.13.37.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Nov 2020 13:37:18 -0800 (PST) From: Lee Jones To: lee.jones@linaro.org Subject: [PATCH v2 15/23] mtd: nand: raw: diskonchip: Marking unused variables as __always_unused Date: Fri, 6 Nov 2020 21:36:47 +0000 Message-Id: <20201106213655.1838861-16-lee.jones@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201106213655.1838861-1-lee.jones@linaro.org> References: <20201106213655.1838861-1-lee.jones@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201106_163720_805141_186B04CE X-CRM114-Status: GOOD ( 19.82 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:444 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dan Brown , Vignesh Raghavendra , Richard Weinberger , linux-kernel@vger.kernel.org, Boris Brezillon , linux-mtd@lists.infradead.org, Miquel Raynal , Thomas Gleixner , David Woodhouse Sender: "linux-mtd" Errors-To: linux-mtd-bounces+patch=linaro.org@lists.infradead.org 'dummy' is never checked (as per the nomenclature) and the use of 'emtpymatch' is currently #if 0'ed out. We could also #if 0 the declaration, but #ifery is pretty ugly, so I like to keep it to a minimum. Fixes the following W=1 kernel build warning(s): drivers/mtd/nand/raw/diskonchip.c: In function ‘DoC_Delay’: drivers/mtd/nand/raw/diskonchip.c:219:16: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] drivers/mtd/nand/raw/diskonchip.c: In function ‘doc200x_calculate_ecc’: drivers/mtd/nand/raw/diskonchip.c:706:6: warning: variable ‘emptymatch’ set but not used [-Wunused-but-set-variable] Cc: Miquel Raynal Cc: Richard Weinberger Cc: Vignesh Raghavendra Cc: Boris Brezillon Cc: Dan Brown Cc: David Woodhouse Cc: Thomas Gleixner Cc: linux-mtd@lists.infradead.org Signed-off-by: Lee Jones --- drivers/mtd/nand/raw/diskonchip.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/diskonchip.c b/drivers/mtd/nand/raw/diskonchip.c index 94432a453e5ee..d5050e32cc421 100644 --- a/drivers/mtd/nand/raw/diskonchip.c +++ b/drivers/mtd/nand/raw/diskonchip.c @@ -216,7 +216,7 @@ static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc) static void DoC_Delay(struct doc_priv *doc, unsigned short cycles) { - volatile char dummy; + volatile char __always_unused dummy; int i; for (i = 0; i < cycles; i++) { @@ -703,7 +703,7 @@ static int doc200x_calculate_ecc(struct nand_chip *this, const u_char *dat, struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; - int emptymatch = 1; + int __always_unused emptymatch = 1; /* flush the pipeline */ if (DoC_is_2000(doc)) {