tree 91d17d89321e5b8233919181b3d58a5acf96c350
parent 67238fb721639046b5d76488317522af4ece9d61
author Brian King <brking@linux.vnet.ibm.com> 1279097293 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1280552191 +1000

powerpc: Remove redundant xics badness warning

While testing cpu offlining, we are regularly seeing the WARN_ON go off
in xics_ipi_dispatch. It can occur when an IPI gets sent to the CPU while
it is going offline. There is already a similar WARN_ON in the handlers
for PPC_MSG_CALL_FUNCTION and PPC_MSG_CALL_FUNC_SINGLE, so the warning
is not needed in that path. The debugger handler handles this case by
simply ignoring IPIs for offline CPUs, so no warning is needed there.
And the reschedule IPI, which is what is occurring in our test environment,
can be safely ignored, so we can simply remove the WARN_ON from xics_ipi_dispatch.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>