parisc: simplify smp_prepare_boot_cpu()

Browse source

smp_prepare_boot_cpu() reads the cpuid of the first CPU, printing a
message to state which processor booted, and setting it online and
present.

This cpuid is retrieved from per_cpu(cpu_data, 0).cpuid, which is
initialised in arch/parisc/kernel/processor.c:processor_probe() thusly:

	p = &per_cpu(cpu_data, cpuid);
...
	p->cpuid = cpuid;	/* save CPU id */

Consequently, the cpuid retrieved seems to be guaranteed to also be
zero, meaning that the message printed in this boils down to:

	pr_info("SMP: bootstrap CPU ID is 0\n");

Moreover, since kernel/cpu.c::boot_cpu_init() already sets CPU 0 to
be present and online, there is no need to do this again in
smp_prepare_boot_cpu().

Remove this code, and simplify the printk().

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Helge Deller <deller@gmx.de>

...

This commit is contained in:

Russell King (Oracle) 2023-10-20 15:45:30 +01:00 • committed by Helge Deller

parent 86bb854d13

commit 1c7431b39a

1 changed files with 1 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

arch/parisc/kernel/smp.c

View file