linux-kernel - [PATCH] cfi: tweak llvm version for HAVE_CFI_ICALL_NORMALIZE

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Message-ID: <20241030-cfi-icall-1913-v1-1-ab8a26e13733@google.com>
Date: Wed, 30 Oct 2024 10:31:34 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Miguel Ojeda <ojeda@...nel.org>, Sami Tolvanen <samitolvanen@...gle.com>
Cc: Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
	Gary Guo <gary@...yguo.net>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Benno Lossin <benno.lossin@...ton.me>, 
	Andreas Hindborg <a.hindborg@...nel.org>, Trevor Gross <tmgross@...ch.edu>, 
	Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, 
	Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, Kees Cook <kees@...nel.org>, 
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	llvm@...ts.linux.dev, kernel test robot <oliver.sang@...el.com>, 
	Alice Ryhl <aliceryhl@...gle.com>
Subject: [PATCH] cfi: tweak llvm version for HAVE_CFI_ICALL_NORMALIZE_INTEGERS

The llvm fix [1] did not make it for 19.0.0, but ended up getting
backported to llvm 19.1.3 [2]. Thus, fix the version requirement to
correctly specify which versions have the bug.

Link: https://github.com/llvm/llvm-project/pull/104826 [1]
Link: https://github.com/llvm/llvm-project/pull/113938 [2]
Reported-by: kernel test robot <oliver.sang@...el.com>
Closes: https://lore.kernel.org/oe-lkp/202410281414.c351044e-oliver.sang@intel.com
Fixes: 8b8ca9c25fe6 ("cfi: fix conditions for HAVE_CFI_ICALL_NORMALIZE_INTEGERS")
Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>
---
 arch/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 00163e4a237c..bd9f095d69fa 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -855,14 +855,14 @@ config HAVE_CFI_ICALL_NORMALIZE_INTEGERS_CLANG
 	def_bool y
 	depends on $(cc-option,-fsanitize=kcfi -fsanitize-cfi-icall-experimental-normalize-integers)
 	# With GCOV/KASAN we need this fix: https://github.com/llvm/llvm-project/pull/104826
-	depends on CLANG_VERSION >= 190000 || (!GCOV_KERNEL && !KASAN_GENERIC && !KASAN_SW_TAGS)
+	depends on CLANG_VERSION >= 190103 || (!GCOV_KERNEL && !KASAN_GENERIC && !KASAN_SW_TAGS)
 
 config HAVE_CFI_ICALL_NORMALIZE_INTEGERS_RUSTC
 	def_bool y
 	depends on HAVE_CFI_ICALL_NORMALIZE_INTEGERS_CLANG
 	depends on RUSTC_VERSION >= 107900
 	# With GCOV/KASAN we need this fix: https://github.com/rust-lang/rust/pull/129373
-	depends on (RUSTC_LLVM_VERSION >= 190000 && RUSTC_VERSION >= 108200) || \
+	depends on (RUSTC_LLVM_VERSION >= 190103 && RUSTC_VERSION >= 108200) || \
 		(!GCOV_KERNEL && !KASAN_GENERIC && !KASAN_SW_TAGS)
 
 config CFI_PERMISSIVE

---
base-commit: 8b8ca9c25fe69c2162e3235c7d6c341127abeed6
change-id: 20241030-cfi-icall-1913-d9583dd2a27b

Best regards,
-- 
Alice Ryhl <aliceryhl@...gle.com>