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The CONFIG_PROPELLER_CLANG option currently depends on ARCH_SUPPORTS_PROPELLER_CLANG, but this dependency seems unnecessary. Remove ARCH_SUPPORTS_PROPELLER_CLANG and allow users to control Propeller builds solely through CONFIG_PROPELLER_CLANG. This simplifies the kconfig and avoids potential confusion. Move the .llvm_bb_addr_map sections grouping to include/asm-generic/vmlinux.lds.h. The Propeller documentation has been updated to reflect the most recent tool location and now includes instructions for arm64. Contributor Acknowledgments: * SPE instructions: Daniel Hoekwater <hoekwater@google.com> Signed-off-by: Rong Xu <xur@google.com> Suggested-by: Will Deacon <will@kernel.org> Suggested-by: Nathan Chancellor <nathan@kernel.org> Tested-by: Yabin Cui <yabinc@google.com> Reviewed-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20260604195612.3757860-3-xur@google.com Signed-off-by: Nathan Chancellor <nathan@kernel.org>