[tip:x86/urgent] x86/apic: Fix a warning message in logical CPU IDs allocation

tip-bot for Dou Liyang
2017-03-01T09:18:04Z

Commit-ID: bb3f0a52630c84807fca9bdd76ac2f5dcec82689
Gitweb: http://git.kernel.org/tip/bb3f0a52630c84807fca9bdd76ac2f5dcec82689
Author: Dou Liyang <douly.fnst@cn.fujitsu.com>
AuthorDate: Tue, 28 Feb 2017 13:50:52 +0800
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 1 Mar 2017 10:09:08 +0100

x86/apic: Fix a warning message in logical CPU IDs allocation

The current warning message in allocate_logical_cpuid() is somewhat confusing:

Only 1 processors supported.Processor 2/0x2 and the rest are ignored.

As it might imply that there's only one CPU in the system - while what we ran
into here is a kernel limitation.

Fix the warning message to clarify all that:

APIC: NR_CPUS/possible_cpus limit of 2 reached. Processor 2/0x2 and the rest are ignored.

( Also update the error return from -1 to -EINVAL, which is the more
canonical return value. )

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: nicstange@gmail.com
Cc: wanpeng.li@hotmail.com
Link: http://lkml.kernel.org/r/1488261052-25753-1-git-send-email-douly.fnst@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kernel/apic/apic.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 4261b32..11088b8 100644