[PATCH v2 0/2] coding-style.rst: document BUG() and WARN() rules

[David Hildenbrand]

As it seems to be rather unclear if/when to use BUG(), BUG_ON(),
VM_BUG_ON(), WARN_ON_ONCE(), ... let's try to document the result of a
recent discussion.

Details can be found in patch #1.

v1 -> v2:
* "coding-style.rst: document BUG() and WARN() rules ("do not crash the
   kernel")"
 -> Minor rephrasing / reference fix [John]
 -> Compile fix [Akira]
* "powerpc/prom_init: drop PROM_BUG()"
 -> Dropped because it will go upstream via a different tree
* "checkpatch: warn on usage of VM_BUG_ON() and other BUG variants"
 -> Rephrase warning message and remove trailing period [John+Joe]

RFC -> v1:
* "coding-style.rst: document BUG() and WARN() rules ("do not crash the
   kernel")"
 -> Rephrase/extend according to John
 -> Add some details regarding the use of panic()
* powerpc/prom_init: drop PROM_BUG()
 -> Added
* "checkpatch: warn on usage of VM_BUG_ON() and other BUG variants"
 -> Warn on more variants


Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: David Laight <David.Laight@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Andy Whitcroft <apw@xxxxxxxxxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>
Cc: Dwaipayan Ray <dwaipayanray1@xxxxxxxxx>
Cc: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: Dave Young <dyoung@xxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Akira Yokosawa <akiyks@xxxxxxxxx>
Cc: Kalle Valo <kvalo@xxxxxxxxxx>
Cc: Daniel K. <daniel@xxxxxxxxxx>

David Hildenbrand (2):
  coding-style.rst: document BUG() and WARN() rules ("do not crash the
    kernel")
  checkpatch: warn on usage of VM_BUG_ON() and other BUG variants

 Documentation/process/coding-style.rst | 62 ++++++++++++++++++++++++++
 scripts/checkpatch.pl                  |  6 +--
 2 files changed, 65 insertions(+), 3 deletions(-)

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2.37.3