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SubjectRE: [PATCH] panic: add support to update panic_timeout via DT
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Hi Sergey,

Thanks for review, 'PATCH V2' uploaded

> why init_oops_id()? you are going to re-read it every time you call
> print_oops_end_marker(), and the system can be configured not to panic on
> oops. put it to oops_setup()? or, at least, move it to `if (!oops_id)' branch,
> maybe?
[Jeetesh] It looks to make changes in oops_setup(), need to pass "oops" parameter in kernel-command
line, so I made changes under 'if (!oops_id)', please review "PATCH V2"

Regards,
Jeetesh

> -----Original Message-----
> From: Sergey Senozhatsky [mailto:sergey.senozhatsky@gmail.com]
> Sent: Friday, October 27, 2017 1:30 PM
> To: Jeetesh Burman <jburman@nvidia.com>
> Cc: sergey.senozhatsky@gmail.com; keescook@chromium.org; linux-
> kernel@vger.kernel.org; Bibek Basu <bbasu@nvidia.com>
> Subject: Re: [PATCH] panic: add support to update panic_timeout via DT
>
> On (10/27/17 09:27), Jeetesh Burman wrote:
> > Add support to set 'panic_timeout' value via dtb to have control from
> > device tree. This makes sense when you have multiple platforms support
> > from same defconfig and differentiated only through device tree blob.
> > The patch will check for panic time out value coming from dtb if it
> > exists, otherwise continues with defconfig provided option.
>
> *my personal opinion* - I'm not super happy to see more and more
> of_find_node_by_name()'s in random places. but that's just IMHO.
>
> > static int init_oops_id(void)
> > {
> > + struct device_node *np;
> > +
> > + np = of_find_node_by_name(NULL, "panic_timeout");
> > + if (np)
> > + of_property_read_u32(np, "panic-timeout-value",
> &panic_timeout);
> > +
> > if (!oops_id)
> > get_random_bytes(&oops_id, sizeof(oops_id));
> > else
>
> why init_oops_id()? you are going to re-read it every time you call
> print_oops_end_marker(), and the system can be configured not to panic on
> oops. put it to oops_setup()? or, at least, move it to `if (!oops_id)' branch,
> maybe?
>
> -ss

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