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(parent: a343c75) | patch
x86: use kernel_stack_pointer() in kgdb.c
authorH. Peter Anvin <hpa@zytor.com>
Mon, 12 Oct 2009 21:12:18 +0000 (14:12 -0700)
committerH. Peter Anvin <hpa@zytor.com>
Mon, 12 Oct 2009 21:19:35 +0000 (14:19 -0700)
commit5ca6c0ca5dbf105d7b0ffdae2289519982189730
treec9226c93c710f56b416545bad112b77047c4de32tree | snapshot
parenta343c75d338aa2afaea4a2a8e40de9e67b6fb4a7commit | diff
x86: use kernel_stack_pointer() in kgdb.c

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>
arch/x86/kernel/kgdb.c diff | blob | history
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