ARM: smp: improve CPU bringup failure diagnostics

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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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Russell King 2010-12-18 12:34:39 +00:00

parent 90b44199e8

commit 58613cd1d4

1 changed files with 5 additions and 9 deletions

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arch/arm/kernel/smp.c

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