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tty: serial: pmac_zilog: Remove unused disposable variable 'garbage'

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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 <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linux-serial@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201112105857.2078977-5-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lee Jones 2020-11-12 10:58:57 +00:00 committed by Greg Kroah-Hartman
parent a609c58086
commit 59105f9cf6
1 changed files with 4 additions and 4 deletions
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8
drivers/tty/serial/pmac_zilog.h
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@ -362,10 +362,10 @@ 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; \
garbage = read_zsdata(port); \
garbage = read_zsdata(port); \
garbage = read_zsdata(port); \
#define ZS_CLEARFIFO(port) do { \
read_zsdata(port); \
read_zsdata(port); \
read_zsdata(port); \
} while(0)
#define ZS_IS_CONS(UP) ((UP)->flags & PMACZILOG_FLAG_IS_CONS)