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| author |   Bart Van Assche <bvanassche@acm.org> | 2022-08-23 12:59:25 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-29 13:29:40 -0700 |
| commit | dcf8e5633e2e69ad60b730ab5905608b756a032f (patch) | |
| tree | 8fab27e48a97373468588d1b434f98004d6c8f87 /include/linux/overflow.h | |
| parent | Merge tag 'docs-6.0-fixes' of git://git.lwn.net/linux (diff) | |
| download | linux-dev-dcf8e5633e2e69ad60b730ab5905608b756a032f.tar.xz linux-dev-dcf8e5633e2e69ad60b730ab5905608b756a032f.zip | |
tracing: Define the is_signed_type() macro once
There are two definitions of the is_signed_type() macro: one in
<linux/overflow.h> and a second definition in <linux/trace_events.h>.
As suggested by Linus, move the definition of the is_signed_type() macro
into the <linux/compiler.h> header file. Change the definition of the
is_signed_type() macro to make sure that it does not trigger any sparse
warnings with future versions of sparse for bitwise types.
Link: https://lore.kernel.org/all/CAHk-=whjH6p+qzwUdx5SOVVHjS3WvzJQr6mDUwhEyTf6pJWzaQ@mail.gmail.com/
Link: https://lore.kernel.org/all/CAHk-=wjQGnVfb4jehFR0XyZikdQvCZouE96xR_nnf5kqaM5qqQ@mail.gmail.com/
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/overflow.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/overflow.h b/include/linux/overflow.h index f1221d11f8e5..0eb3b192f07a 100644 --- a/include/linux/overflow.h +++ b/include/linux/overflow.h @@ -30,7 +30,6 @@ * https://mail-index.netbsd.org/tech-misc/2007/02/05/0000.html - * credit to Christian Biere. */ -#define is_signed_type(type) (((type)(-1)) < (type)1) #define __type_half_max(type) ((type)1 << (8*sizeof(type) - 1 - is_signed_type(type))) #define type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T))) #define type_min(T) ((T)((T)-type_max(T)-(T)1)) |