user32_fxsr_struct 1376 arch/x86/kernel/ptrace.c sizeof(struct user32_fxsr_struct), user32_fxsr_struct 1382 arch/x86/kernel/ptrace.c sizeof(struct user32_fxsr_struct), user32_fxsr_struct 1453 arch/x86/kernel/ptrace.c .n = sizeof(struct user32_fxsr_struct) / sizeof(u32),