If you call access_ok() with page faulting disabled, you'll still see this new warning. If you put that new access_ok() call in a module that gets loaded/unloaded, you see one warning for every module load, which gets a bit annoying.
How about modifying it like this: --- From: David Smith <dsm...@redhat.com> Date: Mon, 16 Jan 2017 14:07:31 -0600 Subject: [PATCH] Relax x86 new access_ok() warning a bit. Signed-off-by: David Smith <dsm...@redhat.com> --- arch/x86/include/asm/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index ea148313570f..0cbd3cca5e7b 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -69,7 +69,7 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un }) #ifdef CONFIG_DEBUG_ATOMIC_SLEEP -# define WARN_ON_IN_IRQ() WARN_ON_ONCE(!in_task()) +# define WARN_ON_IN_IRQ() WARN_ON_ONCE(!in_task() && !pagefault_disabled()) #else # define WARN_ON_IN_IRQ() #endif -- -- David Smith dsm...@redhat.com Red Hat http://www.redhat.com 256.217.0141 (direct) 256.837.0057 (fax)
