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SubjectRe: [PATCH -next] lib/vsprintf: Make function pointer_string static
On Fri 2019-04-26 13:02:04, Steven Rostedt wrote:
> On Sat, 27 Apr 2019 00:46:30 +0800
> Yue Haibing <yuehaibing@huawei.com> wrote:
>
> > From: YueHaibing <yuehaibing@huawei.com>
> >
> > Fix sparse warning:
> >
> > lib/vsprintf.c:673:6: warning:
> > symbol 'pointer_string' was not declared. Should it be static?
> >
> > Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> > ---
> > lib/vsprintf.c | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/lib/vsprintf.c b/lib/vsprintf.c
> > index 1f367f3..7b0a614 100644
> > --- a/lib/vsprintf.c
> > +++ b/lib/vsprintf.c
> > @@ -670,8 +670,9 @@ char *string(char *buf, char *end, const char *s,
> > return string_nocheck(buf, end, s, spec);
> > }
> >
> > -char *pointer_string(char *buf, char *end, const void *ptr,
> > - struct printf_spec spec)
> > +static char *pointer_string(char *buf, char *end,
>
> Looks like commit "vsprintf: Do not check address of well-known
> strings" removed the: "static noinline_for_stack"
>
> Does pointer_string() need that still?

Heh, it was removed by mistake and well hidden in the diff.

I have pushed Yue's fix into printk.git, branch
for-5.2-vsprintf-hardening

Thanks for the patch.

Best Regards,
Petr

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