riscv: Drop tautological condition from TOOLCHAIN_NEEDS_OLD_ISA_SPEC

Now that the minimum supported version of LLVM for building the kernel
has been raised to 17.0.1, the Clang dependency part of
CONFIG_TOOLCHAIN_NEEDS_OLD_ISA_SPEC is always false, so it can be
removed. Adjust the help text to remove mention of Clang < 17, as it is
irrelevant for the kernel after the minimum supported bump.

Acked-by: Paul Walmsley <pjw@kernel.org>  # arch/riscv
Link: https://patch.msgid.link/20260517-bump-minimum-supported-llvm-version-to-17-v2-9-b3b8cda46bdd@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 7ffbf6032b612327638394eea3f9f95dd90a1cd8..c742c42fd39b58db289979448c8b373aa9c5992a 100644 (file)
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -873,19 +873,18 @@ config TOOLCHAIN_NEEDS_EXPLICIT_ZICSR_ZIFENCEI
          and Zifencei are supported in binutils from version 2.36 onwards.
          To make life easier, and avoid forcing toolchains that default to a
          newer ISA spec to version 2.2, relax the check to binutils >= 2.36.
-         For clang < 17 or GCC < 11.3.0, for which this is not possible or need
-         special treatment, this is dealt with in TOOLCHAIN_NEEDS_OLD_ISA_SPEC.
+         For GCC < 11.3.0, for which this is not possible or need special
+         treatment, this is dealt with in TOOLCHAIN_NEEDS_OLD_ISA_SPEC.
 
 config TOOLCHAIN_NEEDS_OLD_ISA_SPEC
        def_bool y
        depends on TOOLCHAIN_NEEDS_EXPLICIT_ZICSR_ZIFENCEI
-       # https://github.com/llvm/llvm-project/commit/22e199e6afb1263c943c0c0d4498694e15bf8a16
        # https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=d29f5d6ab513c52fd872f532c492e35ae9fd6671
-       depends on (CC_IS_CLANG && CLANG_VERSION < 170000) || (CC_IS_GCC && GCC_VERSION < 110300)
+       depends on CC_IS_GCC && GCC_VERSION < 110300
        help
-         Certain versions of clang and GCC do not support zicsr and zifencei via
-         -march. This option causes an older ISA spec compatible with these older
-         versions of clang and GCC to be passed to GAS, which has the same result
+         Certain versions of GCC do not support zicsr and zifencei via -march.
+         This option causes an older ISA spec compatible with these older
+         versions of GCC to be passed to GAS, which has the same result
          as passing zicsr and zifencei to -march.
 
 config FPU