Re: [PATCH v1] LoongArch: Remove unnecessary checks in bt_address()

[Tiezhu Yang]

On 2025/12/9 下午4:30, Huacai Chen wrote:
> Hi, Tiezhu,
>
> On Tue, Dec 9, 2025 at 2:18 PM Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> wrote:
> >
...
> >          extern unsigned long eentry;
> >
> > -       if (__kernel_text_address(ra))
> > -               return ra;
> > -
> > -       if (__module_text_address(ra))
> > -               return ra;
> I think the correct way is to remove the __module_text_address()
> condition but keep the __kernel_text_address() condition. Then return
> 0 at the end of this function, and remove the __kernel_text_address()
> condition out of this function.

It can not remove the check of __kernel_text_address() after calling
bt_address() because it needs to validate the calculated address for
exception, then no need to keep the __kernel_text_address() condition
in bt_address() because it will check the PC outside bt_address().

Thanks,
Tiezhu