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a4502d04c7
linux/arch/arm
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Dmitry Safonov a4502d04c7 arm: add show_stack_loglvl() 
Currently, the log-level of show_stack() depends on a platform
realization.  It creates situations where the headers are printed with
lower log level or higher than the stacktrace (depending on a platform or
user).

Furthermore, it forces the logic decision from user to an architecture
side.  In result, some users as sysrq/kdb/etc are doing tricks with
temporary rising console_loglevel while printing their messages.  And in
result it not only may print unwanted messages from other CPUs, but also
omit printing at all in the unlucky case where the printk() was deferred.

Introducing log-level parameter and KERN_UNSUPPRESSED [1] seems an easier
approach than introducing more printk buffers.  Also, it will consolidate
printings with headers.

Introduce show_stack_loglvl(), that eventually will substitute
show_stack().

[1]: https://lore.kernel.org/lkml/20190528002412.1625-1-dima@arista.com/T/#u

Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will@kernel.org>
Link: http://lkml.kernel.org/r/20200418201944.482088-9-dima@arista.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09 09:39:10 -07:00
..
boot USB/PHY driver updates for 5.8-rc1 2020-06-07 09:42:16 -07:00
common ARM: sa1111: Fix irq_retrigger callback return value 2020-03-16 15:48:54 +00:00
configs ARM: defconfig updates fopr 5.8 2020-06-04 19:54:15 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-06-01 12:00:10 -07:00
include arm: add loglvl to unwind_backtrace() 2020-06-09 09:39:10 -07:00
kernel arm: add show_stack_loglvl() 2020-06-09 09:39:10 -07:00
lib arm/asm: add loglvl to c_backtrace() 2020-06-09 09:39:10 -07:00
mach-actions ARM: actions: Drop unneeded select of COMMON_CLK 2020-05-15 23:27:37 +02:00
mach-alpine ARM: alpine: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:37 +02:00
mach-artpec
mach-asm9260 ARM: asm9260: Drop unneeded select of GENERIC_CLOCKEVENTS 2020-05-15 23:27:37 +02:00
mach-aspeed ARM: aspeed: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:37 +02:00
mach-at91 ARM: SoC updates 2020-04-03 15:02:35 -07:00
mach-axxia
mach-bcm
mach-berlin ARM: berlin: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:37 +02:00
mach-clps711x ARM: clps711x: Drop unneeded select of multi-platform selected options 2020-05-15 23:27:37 +02:00
mach-cns3xxx ARM: cns3xxx: replace setup_irq() by request_irq() 2020-03-27 14:11:47 +01:00
mach-davinci ARM: davinci: fix build failure without I2C 2020-05-28 12:35:00 +02:00
mach-digicolor
mach-dove arm: mach-dove: Mark dove_io_desc as __maybe_unused 2020-03-13 21:44:50 +01:00
mach-ebsa110 ARM: 8964/1: ebsa110: replace setup_irq() by request_irq() 2020-03-19 09:27:39 +00:00
mach-efm32
mach-ep93xx ARM: ep93xx: Replace setup_irq() by request_irq() 2020-03-27 14:11:42 +01:00
mach-exynos arm: Unplug KVM from the build system 2020-03-24 10:55:50 +00:00
mach-footbridge ARM: 8965/2: footbridge: replace setup_irq() by request_irq() 2020-03-19 09:27:40 +00:00
mach-gemini
mach-highbank
mach-hisi
mach-imx ARM: SoC changes for v5.8 2020-06-04 19:47:11 -07:00
mach-integrator VExpress modularization 2020-05-15 23:04:40 +02:00
mach-iop32x ARM: iop32x: replace setup_irq() by request_irq() 2020-03-27 14:10:52 +01:00
mach-ixp4xx
mach-keystone
mach-lpc18xx
mach-lpc32xx
mach-mediatek ARM: mediatek: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-05-15 22:55:06 +02:00
mach-meson
mach-milbeaut
mach-mmp ARM: mmp: Drop unneeded select of COMMON_CLK 2020-05-15 23:27:38 +02:00
mach-moxart
mach-mv78xx0
mach-mvebu ARM: mvebu: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:38 +02:00
mach-mxs
mach-nomadik
mach-npcm
mach-nspire
mach-omap1 ARM: SoC updates 2020-04-03 15:02:35 -07:00
mach-omap2 ARM: DT changes for v5.8 2020-06-04 20:02:14 -07:00
mach-orion5x
mach-oxnas ARM: oxnas: make ox820_boot_secondary static 2020-05-12 10:29:33 +02:00
mach-picoxcell
mach-prima2 ARM: prima2: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:38 +02:00
mach-pxa ARM: pxa: remove Compulab pxa2xx boards 2020-05-26 00:10:57 +02:00
mach-qcom ARM: qcom: Add support for IPQ40xx 2020-03-31 21:03:27 +02:00
mach-rda
mach-realtek ARM: Prepare Realtek RTD1195 2020-04-12 23:13:38 +02:00
mach-realview VExpress modularization 2020-05-15 23:04:40 +02:00
mach-rockchip ARM: rockchip: fix spelling mistake "to" -> "too" 2020-04-13 09:40:45 +02:00
mach-rpc ARM: 8966/1: rpc: replace setup_irq() by request_irq() 2020-03-19 09:27:42 +00:00
mach-s3c24xx backlight: pwm_bl: Switch to full GPIO descriptor 2020-03-18 15:05:57 +00:00
mach-s3c64xx ARM: s3c64xx: convert to use i2c_new_client_device() 2020-04-13 12:28:23 +02:00
mach-s5pv210
mach-sa1100 arm: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
mach-shmobile ARM: shmobile: r8a7742: Basic SoC support 2020-04-28 10:13:58 +02:00
mach-socfpga ARM: socfpga: Drop unneeded select of PCI_DOMAINS_GENERIC 2020-05-15 23:27:38 +02:00
mach-spear ARM: spear: replace setup_irq() by request_irq() 2020-03-27 14:11:45 +01:00
mach-sti
mach-stm32
mach-sunxi
mach-tango
mach-tegra ARM: tegra: Create tegra20-cpufreq platform device on Tegra30 2020-05-06 19:01:17 +02:00
mach-u300
mach-uniphier
mach-ux500
mach-versatile VExpress modularization 2020-05-15 23:04:40 +02:00
mach-vexpress Revert "ARM: vexpress: Don't select VEXPRESS_CONFIG" 2020-05-28 12:30:33 +02:00
mach-vt8500
mach-zx
mach-zynq ARM: zynq: Don't select CONFIG_ICST 2020-05-29 09:36:03 +02:00
mm ARM: SoC changes for v5.8 2020-06-04 19:47:11 -07:00
net bpf, arm: Optimize ALU ARSH K using asr immediate instruction 2020-05-04 17:04:42 +02:00
nwfpe
oprofile
plat-omap
plat-orion ARM: orion: replace setup_irq() by request_irq() 2020-03-13 21:37:15 +01:00
plat-pxa
plat-samsung ARM: samsung: Use devm_platform_ioremap_resource() to simplify code 2020-04-21 11:35:00 +02:00
plat-versatile ARM: versatile: Remove dead sched_clock code 2020-04-16 13:02:17 +02:00
probes
tools vfs: add faccessat2 syscall 2020-05-14 16:44:25 +02:00
vdso .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
vfp
xen arm/xen: make _xen_start_info static 2020-04-17 07:45:12 +02:00
Kconfig ARM: SoC changes for v5.8 2020-06-04 19:47:11 -07:00
Kconfig-nommu
Kconfig.debug ARM: debug-ll: Add support for r8a7742 2020-05-04 14:28:21 +02:00
Makefile Kbuild updates for v5.8 2020-06-06 12:00:25 -07:00