On Thu, Feb 13 2014, Jens Axboe wrote:
> On Thu, Feb 13 2014, Sitsofe Wheeler wrote:
> > Signed-off-by: Sitsofe Wheeler <[email protected]>
> > ---
> > arch/arch-x86-common.h | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arch-x86-common.h b/arch/arch-x86-common.h
> > index 179572d..26a14a8 100644
> > --- a/arch/arch-x86-common.h
> > +++ b/arch/arch-x86-common.h
> > @@ -60,6 +60,7 @@ static inline int arch_init(char *envp[])
> > (unsigned int *) &str[8],
> > (unsigned int *) &str[4]);
> >
> > + str[11] = '\0';
> > if (!strcmp(str, "GenuineIntel"))
> > tsc_reliable = arch_init_intel(level);
> > else if (!strcmp(str, "AuthenticAMD"))
>
> Applied, thanks.
Oops, this one was buggy - if we want the string null terminated, there
needs to be room for 13 characters. It needs to look like this:
diff --git a/arch/arch-x86-common.h b/arch/arch-x86-common.h
index 26a14a823750..31aa79f1b573 100644
--- a/arch/arch-x86-common.h
+++ b/arch/arch-x86-common.h
@@ -54,13 +54,13 @@ static inline int arch_init_amd(unsigned int level)
static inline int arch_init(char *envp[])
{
unsigned int level;
- char str[12];
+ char str[13];
cpuid(0, &level, (unsigned int *) &str[0],
(unsigned int *) &str[8],
(unsigned int *) &str[4]);
- str[11] = '\0';
+ str[12] = '\0';
if (!strcmp(str, "GenuineIntel"))
tsc_reliable = arch_init_intel(level);
else if (!strcmp(str, "AuthenticAMD"))
--
Jens Axboe
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