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From: Michael Ellerman <mpe@ellerman.id.au>
To: Kees Cook <keescook@chromium.org>,
	Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Petr Mladek <pmladek@suse.com>, Tony Luck <tony.luck@intel.com>,
	Kees Cook <keescook@chromium.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Anton Vorontsov <anton@enomsg.org>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	devicetree@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	Paul Mackerras <paulus@samba.org>,
	Colin Cross <ccross@android.com>,
	Enric Balletbo i Serra <enric.balletbo@collabora.com>,
	linuxppc-dev@lists.ozlabs.org, Benson Leung <bleung@chromium.org>
Subject: Re: [PATCH v4 1/6] printk: Collapse shutdown types into a single dump reason
Date: Sat, 23 May 2020 21:16:30 +1000
Message-ID: <87pnaugaup.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <20200515184434.8470-2-keescook@chromium.org>

Kees Cook <keescook@chromium.org> writes:
> To turn the KMSG_DUMP_* reasons into a more ordered list, collapse
> the redundant KMSG_DUMP_(RESTART|HALT|POWEROFF) reasons into
> KMSG_DUMP_SHUTDOWN. The current users already don't meaningfully
> distinguish between them, so there's no need to, as discussed here:
> https://lore.kernel.org/lkml/CA+CK2bAPv5u1ih5y9t5FUnTyximtFCtDYXJCpuyjOyHNOkRdqw@mail.gmail.com/
>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
>  arch/powerpc/kernel/nvram_64.c | 4 +---
>  fs/pstore/platform.c           | 8 ++------
>  include/linux/kmsg_dump.h      | 4 +---
>  kernel/reboot.c                | 6 +++---
>  4 files changed, 7 insertions(+), 15 deletions(-)
>
> diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
> index fb4f61096613..0cd1c88bfc8b 100644
> --- a/arch/powerpc/kernel/nvram_64.c
> +++ b/arch/powerpc/kernel/nvram_64.c
> @@ -655,9 +655,7 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
>  	int rc = -1;
>  
>  	switch (reason) {
> -	case KMSG_DUMP_RESTART:
> -	case KMSG_DUMP_HALT:
> -	case KMSG_DUMP_POWEROFF:
> +	case KMSG_DUMP_SHUTDOWN:
>  		/* These are almost always orderly shutdowns. */
>  		return;
>  	case KMSG_DUMP_OOPS:

Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)

cheers

  parent reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 18:44 [PATCH v4 0/6] allow ramoops to collect all kmesg_dump events Kees Cook
2020-05-15 18:44 ` [PATCH v4 1/6] printk: Collapse shutdown types into a single dump reason Kees Cook
2020-05-15 19:17   ` Pavel Tatashin
2020-05-22 16:21   ` Petr Mladek
2020-05-23 11:16   ` Michael Ellerman [this message]
2020-05-15 18:44 ` [PATCH v4 2/6] printk: honor the max_reason field in kmsg_dumper Kees Cook
2020-05-22 16:51   ` Petr Mladek
2020-05-22 17:34     ` Kees Cook
2020-05-15 18:44 ` [PATCH v4 3/6] printk: Introduce kmsg_dump_reason_str() Kees Cook
2020-05-15 19:23   ` Pavel Tatashin
2020-05-15 18:44 ` [PATCH v4 4/6] pstore/platform: Pass max_reason to kmesg dump Kees Cook
2020-05-15 18:44 ` [PATCH v4 5/6] pstore/ram: Introduce max_reason and convert dump_oops Kees Cook
2020-05-15 19:30   ` Pavel Tatashin
2020-05-15 19:48     ` Kees Cook
2020-05-15 19:40   ` Pavel Tatashin
2020-05-15 19:53     ` Kees Cook
2020-05-15 18:44 ` [PATCH v4 6/6] ramoops: Add max_reason optional field to ramoops DT node Kees Cook
2020-05-18 22:45   ` Rob Herring
2020-05-18 23:04     ` Kees Cook
2020-05-15 19:13 ` [PATCH v4 0/6] allow ramoops to collect all kmesg_dump events Pavel Tatashin

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