Commit cbb999dd authored Jan 24, 2017 by Geert Uytterhoeven Committed by Will Deacon Jan 26, 2017

arm64: Use __pa_symbol for empty_zero_page



If CONFIG_DEBUG_VIRTUAL=y and CONFIG_ARM64_SW_TTBR0_PAN=y:

    virt_to_phys used for non-linear address: ffffff8008cc0000 (empty_zero_page+0x0/0x1000)
    WARNING: CPU: 0 PID: 0 at arch/arm64/mm/physaddr.c:14 __virt_to_phys+0x28/0x60
    ...
    [<ffffff800809abb4>] __virt_to_phys+0x28/0x60
    [<ffffff8008a02600>] setup_arch+0x46c/0x4d4

Fixes: 2077be67 ("arm64: Use __pa_symbol for kernel symbols")
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Will Deacon <will.deacon@arm.com>

parent 4a8d8a14

arch/arm64/kernel/setup.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -298,7 +298,7 @@ void __init setup_arch(char **cmdline_p)
	* faults in case uaccess_enable() is inadvertently called by the init		* faults in case uaccess_enable() is inadvertently called by the init
	* thread.		* thread.
	*/		*/
	init_task.thread_info.ttbr0 = virt_to_phys(empty_zero_page);		init_task.thread_info.ttbr0 = __pa_symbol(empty_zero_page);
	#endif		#endif

	#ifdef CONFIG_VT		#ifdef CONFIG_VT