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Subject[PATCH 42/68] TTY: simserial, remove tmp_buf
Date
It is totally unused.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
---
arch/ia64/hp/sim/simserial.c | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 64ab004..45df0f4 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -55,8 +55,6 @@ struct tty_driver *hp_simserial_driver;

static struct console *console;

-static unsigned char *tmp_buf;
-
extern struct console *console_drivers; /* from kernel/printk.c */

/*
@@ -237,7 +235,8 @@ static int rs_write(struct tty_struct * tty,
int c, ret = 0;
unsigned long flags;

- if (!tty || !info->xmit.buf || !tmp_buf) return 0;
+ if (!tty || !info->xmit.buf)
+ return 0;

local_irq_save(flags);
while (1) {
@@ -618,7 +617,6 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
{
struct serial_state *info = rs_table + tty->index;
int retval;
- unsigned long page;

info->tport.count++;
info->tport.tty = tty;
@@ -630,16 +628,6 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
#endif
tty->low_latency = (info->tport.flags & ASYNC_LOW_LATENCY) ? 1 : 0;

- if (!tmp_buf) {
- page = get_zeroed_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
- if (tmp_buf)
- free_page(page);
- else
- tmp_buf = (unsigned char *) page;
- }
-
/*
* If the port is the middle of closing, bail out now
*/
--
1.7.9.2



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