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authorJoe Perches <joe@perches.com>2020-08-27 06:12:01 +0300
committerJonathan Corbet <corbet@lwn.net>2020-09-01 01:31:15 +0300
commit3942ea7a10c93a379cf33710ece8fe0775950368 (patch)
treed0aa53ec4da0590d026539af0586cd0bc84ff4c9 /Documentation/process
parent3519c4d6e08ea695658b961829d4a603acf8e28a (diff)
downloadlinux-3942ea7a10c93a379cf33710ece8fe0775950368.tar.xz
deprecated.rst: Remove now removed uninitialized_var
It's now gone from the kernel so remove it from the deprecated API text. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/5e10c1645dd8f735215cf54a74db0f8dd3f6cbd5.camel@perches.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/process')
-rw-r--r--Documentation/process/deprecated.rst18
1 files changed, 0 insertions, 18 deletions
diff --git a/Documentation/process/deprecated.rst b/Documentation/process/deprecated.rst
index 918e32d76fc4..70720f00b9aa 100644
--- a/Documentation/process/deprecated.rst
+++ b/Documentation/process/deprecated.rst
@@ -51,24 +51,6 @@ to make sure their systems do not continue running in the face of
"unreachable" conditions. (For example, see commits like `this one
<https://git.kernel.org/linus/d4689846881d160a4d12a514e991a740bcb5d65a>`_.)
-uninitialized_var()
--------------------
-For any compiler warnings about uninitialized variables, just add
-an initializer. Using the uninitialized_var() macro (or similar
-warning-silencing tricks) is dangerous as it papers over `real bugs
-<https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/>`_
-(or can in the future), and suppresses unrelated compiler warnings
-(e.g. "unused variable"). If the compiler thinks it is uninitialized,
-either simply initialize the variable or make compiler changes. Keep in
-mind that in most cases, if an initialization is obviously redundant,
-the compiler's dead-store elimination pass will make sure there are no
-needless variable writes.
-
-As Linus has said, this macro
-`must <https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/>`_
-`be <https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/>`_
-`removed <https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/>`_.
-
open-coded arithmetic in allocator arguments
--------------------------------------------
Dynamic size calculations (especially multiplication) should not be