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Wed, 04 Nov 2020 11:36:47 -0800 (PST) From: Lee Jones To: lee.jones@linaro.org Cc: linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Jiri Slaby , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , linux-serial@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH 34/36] tty: serial: pmac_zilog: Make disposable variable __always_unused Date: Wed, 4 Nov 2020 19:35:47 +0000 Message-Id: <20201104193549.4026187-35-lee.jones@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201104193549.4026187-1-lee.jones@linaro.org> References: <20201104193549.4026187-1-lee.jones@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org Fixes the following W=1 kernel build warning(s): drivers/tty/serial/pmac_zilog.h:365:58: warning: variable ‘garbage’ set but not used [-Wunused-but-set-variable] Cc: Greg Kroah-Hartman Cc: Jiri Slaby Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: linux-serial@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Lee Jones --- drivers/tty/serial/pmac_zilog.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/pmac_zilog.h b/drivers/tty/serial/pmac_zilog.h index bb874e76810e0..968aec7c1cf82 100644 --- a/drivers/tty/serial/pmac_zilog.h +++ b/drivers/tty/serial/pmac_zilog.h @@ -362,7 +362,7 @@ static inline void zssync(struct uart_pmac_port *port) /* Misc macros */ #define ZS_CLEARERR(port) (write_zsreg(port, 0, ERR_RES)) -#define ZS_CLEARFIFO(port) do { volatile unsigned char garbage; \ +#define ZS_CLEARFIFO(port) do { volatile unsigned char __always_unused garbage; \ garbage = read_zsdata(port); \ garbage = read_zsdata(port); \ garbage = read_zsdata(port); \ -- 2.25.1