Kill global variables, constants and functions if local scope suffices

Constify variables where possible.
Initialize programmer-related variables explicitly in programmer_init to
allow running programmer_init from a clean state after
programmer_shutdown.
Prohibit registering programmer shutdown functions before init or after
shutdown.
Kill some dead code.
Rename global variables with namespace-polluting names.
Use a previously unused locking helper function in sst49lfxxxc.c.

This is needed for libflashrom.

Effects on the binary size of flashrom are minimal (300 bytes
shrinkage), but the data section shrinks by 4384 bytes, and that's a
good thing if flashrom is operating in constrained envionments.

Corresponding to flashrom svn r1068.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/udelay.c b/udelay.c
index 8bfba63..981b1bb 100644
--- a/udelay.c
+++ b/udelay.c
@@ -26,7 +26,7 @@
 #include "flash.h"
 
 /* loops per microsecond */
-unsigned long micro = 1;
+static unsigned long micro = 1;
 
 __attribute__ ((noinline)) void myusec_delay(int usecs)
 {
@@ -37,7 +37,7 @@ __attribute__ ((noinline)) void myusec_delay(int usecs)
 	}
 }
 
-unsigned long measure_os_delay_resolution(void)
+static unsigned long measure_os_delay_resolution(void)
 {
 	unsigned long timeusec;
 	struct timeval start, end;
@@ -61,7 +61,7 @@ unsigned long measure_os_delay_resolution(void)
 	return timeusec;
 }
 
-unsigned long measure_delay(int usecs)
+static unsigned long measure_delay(int usecs)
 {
 	unsigned long timeusec;
 	struct timeval start, end;