Alpha's thread_struct is empty (all per-thread state lives in thread_info), so the whitelist is trivially empty. This is more explicit than the generic fallback, which computes the full thread_struct size as copyable.
Assisted-by: Claude:claude-opus-4-6 Signed-off-by: Matt Turner <[email protected]> Tested-by: Magnus Lindholm <[email protected]> Reviewed-by: Magnus Lindholm <[email protected]> --- arch/alpha/Kconfig | 1 + arch/alpha/include/asm/processor.h | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 8f97d6e22b28..cc69f94a1c5b 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -44,6 +44,7 @@ config ALPHA select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_SECCOMP select HAVE_ARCH_SECCOMP_FILTER + select HAVE_ARCH_THREAD_STRUCT_WHITELIST select HAVE_ARCH_TRACEHOOK select HAVE_MOD_ARCH_SPECIFIC select LOCK_MM_AND_FIND_VMA diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h index 5dce5518a211..c461a26d47b3 100644 --- a/arch/alpha/include/asm/processor.h +++ b/arch/alpha/include/asm/processor.h @@ -26,6 +26,13 @@ struct thread_struct { }; #define INIT_THREAD { } +static inline void arch_thread_struct_whitelist(unsigned long *offset, + unsigned long *size) +{ + *offset = 0; + *size = 0; +} + /* Do necessary setup to start up a newly executed thread. */ struct pt_regs; extern void start_thread(struct pt_regs *, unsigned long, unsigned long); -- 2.54.0
