linux/arch/mips
Dmitry Safonov 2062a4e8ae kallsyms/printk: add loglvl to print_ip_sym()
Patch series "Add log level to show_stack()", v3.

Add log level argument to show_stack().

Done in three stages:
1. Introducing show_stack_loglvl() for every architecture
2. Migrating old users with an explicit log level
3. Renaming show_stack_loglvl() into show_stack()

Justification:

- It's a design mistake to move a business-logic decision into platform
  realization detail.

- I have currently two patches sets that would benefit from this work:
  Removing console_loglevel jumps in sysrq driver [1] Hung task warning
  before panic [2] - suggested by Tetsuo (but he probably didn't realise
  what it would involve).

- While doing (1), (2) the backtraces were adjusted to headers and other
  messages for each situation - so there won't be a situation when the
  backtrace is printed, but the headers are missing because they have
  lesser log level (or the reverse).

- As the result in (2) plays with console_loglevel for kdb are removed.

The least important for upstream, but maybe still worth to note that every
company I've worked in so far had an off-list patch to print backtrace
with the needed log level (but only for the architecture they cared
about).  If you have other ideas how you will benefit from show_stack()
with a log level - please, reply to this cover letter.

See also discussion on v1:
https://lore.kernel.org/linux-riscv/20191106083538.z5nlpuf64cigxigh@pathway.suse.cz/

This patch (of 50):

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.

The following callee(s) are using now the adjusted log level:
- microblaze/unwind: the same level as headers & userspace unwind.
  Note that pr_debug()'s there are for debugging the unwinder itself.
- nds32/traps: symbol addresses are printed with the same log level
  as backtrace headers.
- lockdep: ip for locking issues is printed with the same log level
  as other part of the warning.
- sched: ip where preemption was disabled is printed as error like
  the rest part of the message.
- ftrace: bug reports are now consistent in the log level being used.

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Ben Segall <bsegall@google.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Will Deacon <will@kernel.org>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Dmitry Safonov <dima@arista.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/r/20200418201944.482088-2-dima@arista.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09 09:39:10 -07:00
..
alchemy MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
ar7 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
ath25 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
ath79 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
bcm47xx MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
bcm63xx MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
bmips MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
boot MIPS: DTS: Fix build errors used with various configs 2020-05-28 09:35:47 +02:00
cavium-octeon MIPS updates for v5.8: 2020-06-03 13:32:21 -07:00
cobalt MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
configs MIPS: Loongson: Enable devicetree based probing for 8250 ports in defconfig 2020-05-18 09:34:41 +02:00
crypto crypto: {arm,arm64,mips}/poly1305 - remove redundant non-reduction from emit 2020-01-16 15:18:12 +08:00
dec MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
fw MIPS: CFE: Remove dead code in cfe_getfwinfo() 2020-05-07 10:29:42 +02:00
generic MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
include kmap: consolidate kmap_prot definitions 2020-06-04 19:06:22 -07:00
jazz MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
jz4740 MIPS: ingenic: Default to a generic board 2020-05-27 13:04:22 +02:00
kernel kallsyms/printk: add loglvl to print_ip_sym() 2020-06-09 09:39:10 -07:00
kvm ARM: 2020-06-03 15:13:47 -07:00
lantiq MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
lib mips: Add MIPS Release 5 support 2020-05-22 09:09:01 +02:00
loongson2ef MIPS: Fix exception handler memcpy() 2020-05-24 09:15:54 +02:00
loongson32 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
loongson64 Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
math-emu MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00
mm arch/kmap: define kmap_atomic_prot() for all arch's 2020-06-04 19:06:22 -07:00
mti-malta MIPS: Fix exception handler memcpy() 2020-05-24 09:15:54 +02:00
net MIPS: BPF: Use sizeof_field() instead of FIELD_SIZEOF() 2020-01-10 11:33:35 -08:00
netlogic MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
oprofile MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00
paravirt MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
pci MIPS: Loongson64: Switch to generic PCI driver 2020-05-27 13:01:56 +02:00
pic32 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
pistachio MIPS: Fix exception handler memcpy() 2020-05-24 09:15:54 +02:00
pnx833x MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
power mips: check for dsp presence only once before save/restore 2019-10-07 10:58:53 -07:00
ralink MIPS: ralink: drop ralink_clk_init for mt7621 2020-05-31 14:17:00 +02:00
rb532 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sgi-ip22 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sgi-ip27 Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
sgi-ip30 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sgi-ip32 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sibyte MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sni MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
tools MIPS: tools: Fix resource leak in elf-entry.c 2020-05-24 09:29:48 +02:00
txx9 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
vdso MIPS: VDSO: Allow ld.lld to link the VDSO 2020-05-12 10:02:11 +02:00
vr41xx MIPS: Fix builds for VR41xx platforms 2020-05-15 09:09:58 +02:00
Kbuild MIPS: Fix "make clean" error due to recent changes 2020-05-13 13:20:22 +02:00
Kbuild.platforms MIPS: Fix typos in arch/mips/Kbuild.platforms 2020-05-13 13:19:52 +02:00
Kconfig Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
Kconfig.debug mips: Add CPS_NS16550_WIDTH config 2020-05-22 09:12:52 +02:00
Makefile mips: Add MIPS Warrior P5600 support 2020-05-22 09:10:53 +02:00
Makefile.postlink MIPS: fix indentation of the 'RELOCS' message 2020-01-20 15:37:30 -08:00