From 1dc4027bc8b524ed03c4db391cd7910eb4ee19d2 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 16 Sep 2021 09:04:00 +0200 Subject: m68k: Document that access_ok is broken for !CONFIG_CPU_HAS_ADDRESS_SPACES Document that access_ok is completely broken for coldfire and friends at the moment. Signed-off-by: Christoph Hellwig Reviewed-by: Michael Schmitz Tested-by: Michael Schmitz Link: https://lore.kernel.org/r/20210916070405.52750-2-hch@lst.de Signed-off-by: Geert Uytterhoeven --- arch/m68k/include/asm/uaccess.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h index f98208ccbbcd..610bfe8d64d5 100644 --- a/arch/m68k/include/asm/uaccess.h +++ b/arch/m68k/include/asm/uaccess.h @@ -16,6 +16,10 @@ static inline int access_ok(const void __user *addr, unsigned long size) { + /* + * XXX: for !CONFIG_CPU_HAS_ADDRESS_SPACES this really needs to check + * for TASK_SIZE! + */ return 1; } -- cgit v1.2.3