Hi Frederic,
FYI, kernel build failed on
tree: git://github.com/fweisbec/linux-dynticks.git nohz/printk
head: f72ce6fbecebcf9faeaa740754ac71474758c1f6
commit: f72ce6fbecebcf9faeaa740754ac71474758c1f6 [5/5] printk: Wake up klogd with irq_work on nohz CPU
config: sparc64-defconfig # make ARCH=sparc64 defconfig
All error/warnings:
kernel/printk.c: In function 'wake_up_klogd_nohz':
kernel/printk.c:1999:2: error: implicit declaration of function 'arch_irq_work_use_tick' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
vim +1999 kernel/printk.c
f72ce6fb Frederic Weisbecker 2012-10-12 1993 {
f72ce6fb Frederic Weisbecker 2012-10-12 1994 /*
f72ce6fb Frederic Weisbecker 2012-10-12 1995 * If irq work is not itself implemented using the tick
f72ce6fb Frederic Weisbecker 2012-10-12 1996 * it's a safe and fast way to wake up the reader.
f72ce6fb Frederic Weisbecker 2012-10-12 1997 */
f72ce6fb Frederic Weisbecker 2012-10-12 1998 #ifdef CONFIG_IRQ_WORK
f72ce6fb Frederic Weisbecker 2012-10-12 @1999 if (!arch_irq_work_use_tick()) {
f72ce6fb Frederic Weisbecker 2012-10-12 2000 static struct irq_work klogd_irq_work = {
f72ce6fb Frederic Weisbecker 2012-10-12 2001 .func = wake_klogd_irq_work
f72ce6fb Frederic Weisbecker 2012-10-12 2002 };
---
0-DAY kernel build testing backend Open Source Technology Center
Fengguang Wu, Yuanhan Liu Intel Corporation
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