Blackfin: uart: move debug buffers into local bss

There's no need for these saved buffers to be global symbols, or in
the data section.  So mark them static to move them into the bss.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/arch/blackfin/cpu/serial.c b/arch/blackfin/cpu/serial.c
index 650202e24f907eb06400ed08fe92499d6bcb4ff9..b15c945cb582b785535721a1e4817c22956ecca6 100644 (file)
--- a/arch/blackfin/cpu/serial.c
+++ b/arch/blackfin/cpu/serial.c
@@ -49,9 +49,9 @@ DECLARE_GLOBAL_DATA_PTR;
 #include "serial.h"
 
 #ifdef CONFIG_DEBUG_SERIAL
-uint16_t cached_lsr[256];
-uint16_t cached_rbr[256];
-size_t cache_count;
+static uint16_t cached_lsr[256];
+static uint16_t cached_rbr[256];
+static size_t cache_count;
 
 /* The LSR is read-to-clear on some parts, so we have to make sure status
  * bits aren't inadvertently lost when doing various tests.  This also
@@ -112,11 +112,6 @@ int serial_init(void)
        serial_initialize();
        serial_setbrg();
        uart_lsr_clear();
-#ifdef CONFIG_DEBUG_SERIAL
-       cache_count = 0;
-       memset(cached_lsr, 0x00, sizeof(cached_lsr));
-       memset(cached_rbr, 0x00, sizeof(cached_rbr));
-#endif
        return 0;
 }