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vboot: vb2ex_printf() ignores null function name

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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: I1dff38e4d8ab03118e5f8832a16d82c2d2116ec9
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/431111
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Randall Spangler 2017-01-20 14:48:53 -08:00 • committed by chrome-bot
parent 639a030e9d
commit 853ff7176e
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);