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docs: remove mention of ENABLE_MUST_CHECK

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We removed ENABLE_MUST_CHECK in 196793946264 ("Compiler Attributes:
remove CONFIG_ENABLE_MUST_CHECK"), so let's remove docs' mentions.

At the same time, fix the outdated text related to
ENABLE_WARN_DEPRECATED that wasn't removed in 3337d5cfe5e08
("configs: get rid of obsolete CONFIG_ENABLE_WARN_DEPRECATED").

Finally, reflow the paragraph.

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20210105055815.GA5173@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Miguel Ojeda 2021-01-05 06:58:15 +01:00 committed by Jonathan Corbet
parent 798ed7800e
commit 0ef597c3ac
1 changed files with 2 additions and 4 deletions
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6
Documentation/process/4.Coding.rst
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@ -249,10 +249,8 @@ features; most of these are found in the "kernel hacking" submenu. Several
of these options should be turned on for any kernel used for development or
testing purposes. In particular, you should turn on:
- ENABLE_MUST_CHECK and FRAME_WARN to get an
extra set of warnings for problems like the use of deprecated interfaces
or ignoring an important return value from a function. The output
generated by these warnings can be verbose, but one need not worry about
- FRAME_WARN to get warnings for stack frames larger than a given amount.
The output generated can be verbose, but one need not worry about
warnings from other parts of the kernel.
- DEBUG_OBJECTS will add code to track the lifetime of various objects