x86: use kernel_stack_pointer() in kgdb.c

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The way to obtain a kernel-mode stack pointer from a struct
pt_regs in 32-bit mode is "subtle": the stack doesn't actually
contain the stack pointer, but rather the location where it would
have been marks the actual previous stack frame.  For clarity, use
kernel_stack_pointer() instead of coding this weirdness
explicitly.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Jason Wessel <jason.wessel@windriver.com>

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This commit is contained in:

H. Peter Anvin 2009-10-12 14:12:18 -07:00

parent a343c75d33

commit 5ca6c0ca5d

1 changed files with 1 additions and 2 deletions

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arch/x86/kernel/kgdb.c

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