user/sven/linux.git/kernel/debug, branch v5.14.6

kernel: debug: Fix unreachable code in gdb_serial_stub()

2021-07-12T16:03:35Z

Fix the following warning: kernel/debug/gdbstub.c:1049:4: warning: fallthrough annotation in unreachable code [-Wimplicit-fallthrough] fallthrough; ^ include/linux/compiler_attributes.h:210:41: note: expanded from macro 'fallthrough' # define fallthrough __attribute__((__fallthrough__) by placing the fallthrough; statement inside ifdeffery. Reported-by: kernel test robot Signed-off-by: Gustavo A. R. Silva

Merge tag 'kgdb-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

2021-07-06T18:29:18Z

Pull kgdb updates from Daniel Thompson: "This was a extremely quiet cycle for kgdb. This consists of two patches that between them address spelling errors and a switch fallthrough warning" * tag 'kgdb-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux: kgdb: Fix fall-through warning for Clang kgdb: Fix spelling mistakes

Merge tag 'printk-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

2021-06-29T19:07:18Z

Pull printk updates from Petr Mladek: - Add %pt[RT]s modifier to vsprintf(). It overrides ISO 8601 separator by using ' ' (space). It produces "YYYY-mm-dd HH:MM:SS" instead of "YYYY-mm-ddTHH:MM:SS". - Correctly parse long row of numbers by sscanf() when using the field width. Add extensive sscanf() selftest. - Generalize re-entrant CPU lock that has already been used to serialize dump_stack() output. It is part of the ongoing printk rework. It will allow to remove the obsoleted printk_safe buffers and introduce atomic consoles. - Some code clean up and sparse warning fixes. * tag 'printk-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: printk: fix cpu lock ordering lib/dump_stack: move cpu lock to printk.c printk: Remove trailing semicolon in macros random32: Fix implicit truncation warning in prandom_seed_state() lib: test_scanf: Remove pointless use of type_min() with unsigned types selftests: lib: Add wrapper script for test_scanf lib: test_scanf: Add tests for sscanf number conversion lib: vsprintf: Fix handling of number field widths in vsscanf lib: vsprintf: scanf: Negative number must have field width > 1 usb: host: xhci-tegra: Switch to use %ptTs nilfs2: Switch to use %ptTs kdb: Switch to use %ptTs lib/vsprintf: Allow to override ISO 8601 date and time separator

sched: Change task_struct::state

2021-06-18T09:43:09Z

Change the type and name of task_struct::state. Drop the volatile and shrink it to an 'unsigned int'. Rename it in order to find all uses such that we can use READ_ONCE/WRITE_ONCE as appropriate. Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Daniel Bristot de Oliveira Acked-by: Will Deacon Acked-by: Daniel Thompson Link: https://lore.kernel.org/r/20210611082838.550736351@infradead.org

kgdb: Fix fall-through warning for Clang

2021-06-01T09:34:35Z

In preparation to enable -Wimplicit-fallthrough for Clang, fix a fall-through warning by explicitly adding a goto statement instead of letting the code fall through to the next case. Link: https://github.com/KSPP/linux/issues/115 Signed-off-by: Gustavo A. R. Silva Link: https://lore.kernel.org/r/20210528200222.GA39201@embeddedor Signed-off-by: Daniel Thompson

kgdb: Fix spelling mistakes

2021-06-01T09:29:21Z

Fix some spelling mistakes in comments: initalization ==> initialization detatch ==> detach represntation ==> representation hexidecimal ==> hexadecimal delimeter ==> delimiter architecure ==> architecture Signed-off-by: Zhen Lei Link: https://lore.kernel.org/r/20210529110305.9446-3-thunder.leizhen@huawei.com Signed-off-by: Daniel Thompson

kdb: Switch to use %ptTs

2021-05-17T10:01:35Z

Use %ptTs instead of open-coded variant to print contents of time64_t type in human readable form. Cc: Jason Wessel Cc: Daniel Thompson Cc: kgdb-bugreport@lists.sourceforge.net Signed-off-by: Andy Shevchenko Reviewed-by: Petr Mladek Reviewed-by: Douglas Anderson Reviewed-by: Daniel Thompson Acked-by: Daniel Thompson Signed-off-by: Petr Mladek Link: https://lore.kernel.org/r/20210511153958.34527-2-andriy.shevchenko@linux.intel.com

Merge tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

2021-04-28T01:09:44Z

Pull printk updates from Petr Mladek: - Stop synchronizing kernel log buffer readers by logbuf_lock. As a result, the access to the buffer is fully lockless now. Note that printk() itself still uses locks because it tries to flush the messages to the console immediately. Also the per-CPU temporary buffers are still there because they prevent infinite recursion and serialize backtraces from NMI. All this is going to change in the future. - kmsg_dump API rework and cleanup as a side effect of the logbuf_lock removal. - Make bstr_printf() aware that %pf and %pF formats could deference the given pointer. - Show also page flags by %pGp format. - Clarify the documentation for plain pointer printing. - Do not show no_hash_pointers warning multiple times. - Update Senozhatsky email address. - Some clean up. * tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (24 commits) lib/vsprintf.c: remove leftover 'f' and 'F' cases from bstr_printf() printk: clarify the documentation for plain pointer printing kernel/printk.c: Fixed mundane typos printk: rename vprintk_func to vprintk vsprintf: dump full information of page flags in pGp mm, slub: don't combine pr_err with INFO mm, slub: use pGp to print page flags MAINTAINERS: update Senozhatsky email address lib/vsprintf: do not show no_hash_pointers message multiple times printk: console: remove unnecessary safe buffer usage printk: kmsg_dump: remove _nolock() variants printk: remove logbuf_lock printk: introduce a kmsg_dump iterator printk: kmsg_dumper: remove @active field printk: add syslog_lock printk: use atomic64_t for devkmsg_user.seq printk: use seqcount_latch for clear_seq printk: introduce CONSOLE_LOG_MAX printk: consolidate kmsg_dump_get_buffer/syslog_print_all code printk: refactor kmsg_dump_get_buffer() ...

kdb: Refactor env variables get/set code

2021-04-14T12:47:09Z

Add two new kdb environment access methods as kdb_setenv() and kdb_printenv() in order to abstract out environment access code from kdb command functions. Also, replace (char *)0 with NULL as an initializer for environment variables array. Signed-off-by: Sumit Garg Reviewed-by: Douglas Anderson Link: https://lore.kernel.org/r/1612771342-16883-1-git-send-email-sumit.garg@linaro.org [daniel.thompson@linaro.org: Replaced (char *)0/NULL initializers with an array size] Signed-off-by: Daniel Thompson

kernel: debug: Ordinary typo fixes in the file gdbstub.c

2021-03-19T17:36:00Z

s/overwitten/overwritten/ s/procesing/processing/ Signed-off-by: Bhaskar Chowdhury Link: https://lore.kernel.org/r/20210317104658.4053473-1-unixbhaskar@gmail.com Acked-by: Randy Dunlap Signed-off-by: Daniel Thompson