[PATCH 10/38] powerpc: Add comment explaining the purpose of setup_kdump_trampoline()
Benjamin Herrenschmidt
benh at kernel.crashing.org
Mon Jun 27 21:29:08 AEST 2016
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 at kernel.crashing.org>
---
arch/powerpc/kernel/setup_64.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index e1b2e6f..a641753 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -276,10 +276,11 @@ void __init early_setup(unsigned long dt_ptr)
/* Probe the machine type */
probe_machine();
+ /* Setup the trampolines from the lowmem exception vectors
+ * to the kdump kernel when not using a relocatable kernel.
+ */
setup_kdump_trampoline();
- DBG("Found, Initializing memory management...\n");
-
/* Initialize the hash table or TLB handling */
early_init_mmu();
--
2.7.4
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