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authorKees Cook <keescook@chromium.org>2021-06-17 22:48:05 -0700
committerKees Cook <keescook@chromium.org>2021-09-25 08:20:49 -0700
commitc80d92fbb67b2c80b8eeb8759ee79d676eb33520 (patch)
tree1a3310f4a7976cc5b7b3d9ade2069188eb7dca90 /include/linux/compiler_types.h
parent8610047ca89f4855ae0546dfc8db122d28deb50d (diff)
compiler_types.h: Remove __compiletime_object_size()
Since all compilers support __builtin_object_size(), and there is only one user of __compiletime_object_size, remove it to avoid the needless indirection. This lets Clang reason about check_copy_size() correctly. Link: https://github.com/ClangBuiltLinux/linux/issues/1179 Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Sedat Dilek <sedat.dilek@gmail.com> Cc: Will Deacon <will@kernel.org> Cc: Marco Elver <elver@google.com> Cc: Arvind Sankar <nivedita@alum.mit.edu> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Sami Tolvanen <samitolvanen@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Gabriel Krisman Bertazi <krisman@collabora.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include/linux/compiler_types.h')
-rw-r--r--include/linux/compiler_types.h5
1 files changed, 0 insertions, 5 deletions
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index b6ff83a714ca..05ceb2e92b0e 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -290,11 +290,6 @@ struct ftrace_likely_data {
(sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
-/* Compile time object size, -1 for unknown */
-#ifndef __compiletime_object_size
-# define __compiletime_object_size(obj) -1
-#endif
-
#ifdef __OPTIMIZE__
# define __compiletime_assert(condition, msg, prefix, suffix) \
do { \