[PATCH -tip] x86/percpu: Enable named address spaces for GCC 9.1+

From: Uros Bizjak
Date: Thu Mar 21 2024 - 12:56:13 EST


Enable named address spaces also for GCC 9, GCC 10 and GCC 11
releases. These compilers all produce kernel images that boot
without problems.

GCC_VERSION cutoff is arbitrary. It is primary a risk-reduction
cutoff, older compilers will be tested and enabled in linux 6.10
release.

Signed-off-by: Uros Bizjak <ubizjak@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Brian Gerst <brgerst@xxxxxxxxx>
Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
arch/x86/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 09455d93b947..03c9d1100f09 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2433,7 +2433,7 @@ source "kernel/livepatch/Kconfig"
endmenu

config CC_HAS_NAMED_AS
- def_bool CC_IS_GCC && GCC_VERSION >= 120100
+ def_bool CC_IS_GCC && GCC_VERSION >= 90100

config CC_HAS_NAMED_AS_FIXED_ASAN
def_bool CC_IS_GCC && GCC_VERSION >= 130300
--
2.42.0