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include/linux/compiler*.h changes:

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- A fix for OPTIMIZER_HIDE_VAR
     From Michael S. Tsirkin
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mergetag object 99e309b6ed
 type commit
 tag clang-format-for-linus-v5.0-rc3
 tagger Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> 1547999145 +0100
 
 clang-format changes:
 
   - Update of the for_each macro list
     From Jason Gunthorpe
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Merge tags 'compiler-attributes-for-linus-v5.0-rc3' and 'clang-format-for-linus-v5.0-rc3' of git://github.com/ojeda/linux

Pull misc clang fixes from Miguel Ojeda:

  - A fix for OPTIMIZER_HIDE_VAR from Michael S Tsirkin

  - Update clang-format with the latest for_each macro list from Jason
    Gunthorpe

* tag 'compiler-attributes-for-linus-v5.0-rc3' of git://github.com/ojeda/linux:
  include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR

* tag 'clang-format-for-linus-v5.0-rc3' of git://github.com/ojeda/linux:
  clang-format: Update .clang-format with the latest for_each macro list
This commit is contained in:
Linus Torvalds 2019-01-21 07:23:42 +13:00
commit 315a6d850a
5 changed files with 48 additions and 12 deletions
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4
include/linux/compiler-gcc.h
View file

@ -58,10 +58,6 @@
(typeof(ptr)) (__ptr + (off)); \
})
/* Make the optimizer believe the variable can be manipulated arbitrarily. */
#define OPTIMIZER_HIDE_VAR(var) \
__asm__ ("" : "=r" (var) : "0" (var))
/*
* A trick to suppress uninitialized variable warning without generating any
* code