Hi Petr
> -----Original Message-----
> From: Petr Mladek <[email protected]>
> Sent: 2019年8月16日 16:27
> To: Justin He (Arm Technology China) <[email protected]>
> Cc: Geert Uytterhoeven <[email protected]>; Sergey Senozhatsky
> <[email protected]>; Thomas Gleixner <[email protected]>;
> Andy Shevchenko <[email protected]>; linux-
> [email protected]; Kees Cook <[email protected]>; Steven
> Rostedt (VMware) <[email protected]>; Shuah Khan
> <[email protected]>; Tobin C. Harding <[email protected]>
> Subject: Re: [PATCH 2/2] lib/test_printf: add test of null/invalid pointer
> dereference for dentry
>
> On Fri 2019-08-09 09:24:57, Jia He wrote:
> > This add some additional test cases of null/invalid pointer dereference
> > for dentry and file (%pd and %pD)
> >
> > Signed-off-by: Jia He <[email protected]>
> > ---
> > lib/test_printf.c | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/lib/test_printf.c b/lib/test_printf.c
> > index 944eb50f3862..befedffeb476 100644
> > --- a/lib/test_printf.c
> > +++ b/lib/test_printf.c
> > @@ -455,6 +455,13 @@ dentry(void)
> > test("foo", "%pd", &test_dentry[0]);
> > test("foo", "%pd2", &test_dentry[0]);
> >
> > + /* test the null/invalid pointer case for dentry */
> > + test("(null)", "%pd", NULL);
> > + test("(efault)", "%pd", PTR_INVALID);
> > + /* test the null/invalid pointer case for file */
>
> The two comments mention something that is obvious from the code.
>
No problem, ok with me 😊
--
Cheers,
Justin (Jia He)
> I have pushed the patch as is and removed the comments in
> a follow up patch [1]. Both are in printk.git, branch for-5.4.
>
> > + test("(null)", "%pD", NULL);
> > + test("(efault)", "%pD", PTR_INVALID);
>
> Reference:
> [1]
> https://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git/commi
> t/?h=for-5.4&id=8ebea6ea1a7ed5d67ecbb2a493c716a2a89c0be2
>
> Best Regards,
> Petr
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