tile: set up initial stack top to honor STACK_TOP_DELTA

For some reason this was never changed to match the rest of the
code where we always initialize the kernel sp 64 bytes below
the top of the page.  This is generally harmless, but it does
mean that if you do a dump_stack() early on in kernel boot you
see a bogus warning about stack overrun.

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>

diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 6873f006f7d04fb1e71f8e9be386854431acb513..2c8304c8a2cdf1f1209c56053bb0f0a9d8953a88 100644 (file)
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -71,7 +71,7 @@ static unsigned long __initdata node_percpu[MAX_NUMNODES];
  * per-CPU stack and boot info.
  */
 DEFINE_PER_CPU(unsigned long, boot_sp) =
-       (unsigned long)init_stack + THREAD_SIZE;
+       (unsigned long)init_stack + THREAD_SIZE - STACK_TOP_DELTA;
 
 #ifdef CONFIG_SMP
 DEFINE_PER_CPU(unsigned long, boot_pc) = (unsigned long)start_kernel;