linux-kernel - Re: [PATCHv2 01/50] kallsyms/printk: Add loglvl to print_ip

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Date:   Mon, 16 Mar 2020 08:29:28 -0700
From:   Joe Perches <joe@...ches.com>
To:     Dmitry Safonov <dima@...sta.com>, linux-kernel@...r.kernel.org
Cc:     Dmitry Safonov <0x7f454c46@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...nel.org>, Jiri Slaby <jslaby@...e.com>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        Albert Ou <aou@...s.berkeley.edu>,
        Ben Segall <bsegall@...gle.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Greentime Hu <green.hu@...il.com>,
        Ingo Molnar <mingo@...hat.com>,
        James Hogan <jhogan@...nel.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Mel Gorman <mgorman@...e.de>, Michal Simek <monstr@...str.eu>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Burton <paulburton@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vincent Chen <deanbo422@...il.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Will Deacon <will@...nel.org>, linux-mips@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCHv2 01/50] kallsyms/printk: Add loglvl to print_ip_sym()

On Mon, 2020-03-16 at 14:38 +0000, Dmitry Safonov wrote:
> print_ip_sym() needs to have a log level parameter to comply with other
> parts being printed. Otherwise, half of the expected backtrace would be
> printed and other may be missing with some logging level.

There are 15 instances of print_ip_sym.

Perhaps it'd be better to get rid of print_ip_sym
altogether by expanding it in-place instead.

>  arch/microblaze/kernel/unwind.c | 2 +-
>  arch/mips/kernel/traps.c        | 4 ++--
>  arch/nds32/kernel/traps.c       | 4 ++--
>  arch/riscv/kernel/stacktrace.c  | 2 +-
>  include/linux/kallsyms.h        | 4 ++--
>  kernel/locking/lockdep.c        | 4 ++--
>  kernel/sched/core.c             | 6 ++----
>  kernel/trace/ftrace.c           | 8 ++++----
>  tools/include/linux/kallsyms.h  | 2 +-