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authorLuc Van Oostenryck <luc.vanoostenryck@gmail.com>2021-04-29 22:53:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 11:20:35 -0700
commitd991bb1c8da842a2a0b9dc83b1005e655783f861 (patch)
treeb60f5685e00ff8b04ee4794b301882bddfa643b9
parent99e729bd40fb3272fa4b0140839d5e957b58588a (diff)
include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
Sparse can do constant folding of __builtin_bswap*() since 2017. Also, a much recent version of Sparse is needed anyway, see commit 6ec4476ac825 ("Raise gcc version requirement to 4.9"). So, remove the comment about sparse not being yet able to constant fold __builtin_bswap*() and remove the corresponding test of __CHECKER__. Link: https://lkml.kernel.org/r/20210226092236.99369-1-luc.vanoostenryck@gmail.com Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/compiler-gcc.h8
1 files changed, 2 insertions, 6 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 48750243db4c..5d97ef738a57 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -90,15 +90,11 @@
*/
#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
-/*
- * sparse (__CHECKER__) pretends to be gcc, but can't do constant
- * folding in __builtin_bswap*() (yet), so don't set these for it.
- */
-#if defined(CONFIG_ARCH_USE_BUILTIN_BSWAP) && !defined(__CHECKER__)
+#if defined(CONFIG_ARCH_USE_BUILTIN_BSWAP)
#define __HAVE_BUILTIN_BSWAP32__
#define __HAVE_BUILTIN_BSWAP64__
#define __HAVE_BUILTIN_BSWAP16__
-#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP && !__CHECKER__ */
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
#if GCC_VERSION >= 70000
#define KASAN_ABI_VERSION 5