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vboot: vb2ex_printf() ignores null function name 

Currently, it will print the function name as a prefix to the debug
output.  Make it so that a null function name won't get printed, so
that it's possible to print little bits of debug output.

BUG=chromium:683391
BRANCH=none
TEST=build_packages --board=reef chromeos-firmware

Change-Id: I046fa766773fc08a29460db1f884d7902692d182
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 853ff7176e97e5e1ab664d094e1914c9c94510aa
Original-Change-Id: I1dff38e4d8ab03118e5f8832a16d82c2d2116ec9
Original-Signed-off-by: Randall Spangler <rspangler@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/431111
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/18204
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Randall Spangler 2017-01-20 14:48:53 -08:00 committed by Patrick Georgi
parent 4ecccff72f
commit e80c6f6d3c
1 changed files with 3 additions and 1 deletions
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4
src/vboot/vboot_logic.c
View File

@ -42,7 +42,9 @@ void vb2ex_printf(const char *func, const char *fmt, ...)
{
va_list args;
printk(BIOS_INFO, "VB2:%s() ", func);
if (func)
printk(BIOS_INFO, "VB2:%s() ", func);
va_start(args, fmt);
do_printk_va_list(BIOS_INFO, fmt, args);
va_end(args);