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tty: xuartps: Properly guard sysrq specific code

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Commit 'tty: xuartps: Implement BREAK detection, add SYSRQ support'
(0c0c47bc40) introduced sysrq support
without properly guarding sysrq specific code which results in build
errors when sysrq is disabled:
	DNAME=KBUILD_STR(xilinx_uartps)" -c -o
	drivers/tty/serial/.tmp_xilinx_uartps.o
	drivers/tty/serial/xilinx_uartps.c
	drivers/tty/serial/xilinx_uartps.c: In function 'xuartps_isr':
	drivers/tty/serial/xilinx_uartps.c:247:5: error: 'struct uart_port'
	has no member named 'sysrq'
	drivers/tty/serial/xilinx_uartps.c:247:5: error: 'struct uart_port'
	has no member named 'sysrq'
	drivers/tty/serial/xilinx_uartps.c:247:5: error: 'struct uart_port'
	has no member named 'sysrq'
	make[3]: *** [drivers/tty/serial/xilinx_uartps.o] Error 1

Reported-by: Masanari Iida <standby24x7@gmail.com>
Cc: Vlad Lungu <vlad.lungu@windriver.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Soren Brinkmann 2013-12-02 11:38:38 -08:00 committed by Greg Kroah-Hartman
parent 1075a6e2dc
commit c2db11eca0
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/serial/xilinx_uartps.c
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@ -240,6 +240,7 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
continue; continue;
} }
#ifdef SUPPORT_SYSRQ
/* /*
* uart_handle_sysrq_char() doesn't work if * uart_handle_sysrq_char() doesn't work if
* spinlocked, for some reason * spinlocked, for some reason
@ -253,6 +254,7 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
} }
spin_lock(&port->lock); spin_lock(&port->lock);
} }
#endif
port->icount.rx++; port->icount.rx++;