Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-12 00:00:00 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

powerpc: Replace cpu_up/down() with add/remove_cpu()

Browse Source 
The core device API performs extra housekeeping bits that are missing
from directly calling cpu_up/down.

See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and
serialization during LPM") for an example description of what might go
wrong.

This also prepares to make cpu_up/down() a private interface of the CPU
subsystem.

Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lkml.kernel.org/r/20200323135110.30522-11-qais.yousef@arm.com
This commit is contained in:
Qais Yousef 2020-03-23 13:51:03 +00:00 committed by Thomas Gleixner
parent af7aa04683
commit 4d37cc2dc3
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kexec/core_64.c
View File

@ -212,7 +212,7 @@ static void wake_offline_cpus(void)
if (!cpu_online(cpu)) {
printk(KERN_INFO "kexec: Waking offline cpu %d.\n",
cpu);
WARN_ON(cpu_up(cpu));
WARN_ON(add_cpu(cpu));
}
}
}