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x86/alternatives: Fix build warning

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Fixes these warnings:

 arch/x86/kernel/alternative.c: In function 'alternatives_text_reserved':
 arch/x86/kernel/alternative.c:402: warning: comparison of distinct pointer types lacks a cast
 arch/x86/kernel/alternative.c:402: warning: comparison of distinct pointer types lacks a cast
 arch/x86/kernel/alternative.c:405: warning: comparison of distinct pointer types lacks a cast
 arch/x86/kernel/alternative.c:405: warning: comparison of distinct pointer types lacks a cast

Caused by:

  2cfa197: ftrace/alternatives: Introducing *_text_reserved functions

Changes in v2:
  - Use local variables to compare, instead of type casts.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20100205171647.15750.37221.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Masami Hiramatsu 2010-02-05 12:16:47 -05:00 committed by Ingo Molnar
parent 5f48536436
commit 076dc4a65a
1 changed files with 4 additions and 2 deletions
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6
arch/x86/kernel/alternative.c
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@ -395,12 +395,14 @@ int alternatives_text_reserved(void *start, void *end)
{
struct smp_alt_module *mod;
u8 **ptr;
u8 *text_start = start;
u8 *text_end = end;
list_for_each_entry(mod, &smp_alt_modules, next) {
if (mod->text > end || mod->text_end < start)
if (mod->text > text_end || mod->text_end < text_start)
continue;
for (ptr = mod->locks; ptr < mod->locks_end; ptr++)
if (start <= *ptr && end >= *ptr)
if (text_start <= *ptr && text_end >= *ptr)
return 1;
}