From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sat, 18 Dec 2010 12:34:39 +0000 (+0000)
Subject: ARM: smp: improve CPU bringup failure diagnostics
X-Git-Tag: v2.6.38-rc1~471^2~2^2^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58613cd1d4f8c2d5f25b6c57ad7fbed80e75a67b;p=pandora-kernel.git

ARM: smp: improve CPU bringup failure diagnostics

We used to print a bland error message which gave no clue as to the
failure when we failed to bring up a secondary CPU.  Resolve this by
separating the two failure cases.

If boot_secondary() fails, we print a message indicating the returned
error code from boot_secondary():
	"CPU%u: failed to boot: %d\n", cpu, ret.

However, if boot_secondary() succeeded, but the CPU did not appear to
mark itself online within the timeout, indicate that it failed to come
online:
	"CPU%u: failed to come online\n", cpu

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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