From bb3b2cfeb206f5b10b859e134651b54120e3f530 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 30 Jun 2026 18:05:56 +0100 Subject: ARM: 9480/1: entry: expand comment in __switch_to As per discussion between the developers in the mail thread linked, expand the comment in __switch_to so that readers of the code understand what is going on. Suggested-by: Mark Rutland Acked-by: Mark Rutland Signed-off-by: Linus Walleij > Signed-off-by: Russell King --- include/asm-generic/ioctl.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 include/asm-generic/ioctl.h (limited to 'include/asm-generic/ioctl.h') diff --git a/include/asm-generic/ioctl.h b/include/asm-generic/ioctl.h new file mode 100644 index 000000000..9fda9ed00 --- /dev/null +++ b/include/asm-generic/ioctl.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_GENERIC_IOCTL_H +#define _ASM_GENERIC_IOCTL_H + +#include + +#ifdef __CHECKER__ +#define _IOC_TYPECHECK(t) (sizeof(t)) +#else +/* provoke compile error for invalid uses of size argument */ +extern unsigned int __invalid_size_argument_for_IOC; +#define _IOC_TYPECHECK(t) \ + ((sizeof(t) == sizeof(t[1]) && \ + sizeof(t) < (1 << _IOC_SIZEBITS)) ? \ + sizeof(t) : __invalid_size_argument_for_IOC) +#endif + +#endif /* _ASM_GENERIC_IOCTL_H */ -- cgit v1.3.1