powerpc: Add comment explaining the purpose of setup_kdump_trampoline()
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 5 Jul 2016 05:03:46 +0000 (15:03 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 11 Jul 2016 10:09:40 +0000 (20:09 +1000)
commit63c254a501049f70c53aea602525c6912362079e
tree4c1773a7a48250f8b2de88eb01f1abc42a3636e6
parentbd7c93cca36911baf2eb2bc386956612af3b842d
powerpc: Add comment explaining the purpose of setup_kdump_trampoline()

Anything in early_setup() needs to be justified to be there, in
this case, we need the trampolines before we can take exceptions
and thus before we turn on the MMU.

Also remove a pretty meaningless and misplaced debug message

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[mpe: Fix comment formatting]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/setup_64.c