linux_dsm_epyc7002/arch/microblaze
Dmitry Safonov 14b0dd870f microblaze: add loglvl to microblaze_unwind()
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.

Add log level parameter to microblaze_unwind() as a preparation to add
show_stack_loglvl().

[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: Michal Simek <monstr@monstr.eu>
Link: http://lkml.kernel.org/r/20200418201944.482088-20-dima@arista.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09 09:39:11 -07:00
..
boot .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
configs microblaze: Wire CMA allocator 2020-02-04 11:38:59 +01:00
include microblaze: add loglvl to microblaze_unwind() 2020-06-09 09:39:11 -07:00
kernel microblaze: add loglvl to microblaze_unwind() 2020-06-09 09:39:11 -07:00
lib microblaze: Setup dependencies for ASM optimized lib functions 2018-03-16 12:51:26 +01:00
mm arch/kmap: ensure kmap_prot visibility 2020-06-04 19:06:22 -07:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci microblaze: Drop using struct of_pci_range.pci_space field 2020-02-14 14:25:06 -06:00
Kconfig mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option 2020-06-03 20:09:43 -07:00
Kconfig.debug docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
Kconfig.platform docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
Makefile microblaze: fix race condition in building boot images 2018-12-14 08:09:21 +01:00