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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>
steinar/wifi_calib_4_9_kernel
Chris Metcalf 2015-05-05 13:20:03 -04:00
parent e5701b74cc
commit 9a5d2cbe6a
1 changed files with 1 additions and 1 deletions
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arch/tile/kernel/setup.c
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@ -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;