Commit 423e85e9 authored by Ivan T. Ivanov's avatar Ivan T. Ivanov Committed by Heiko Stuebner
Browse files

ARM: rockchip: Use memcpy_toio instead of memcpy on smp bring-up 



This fixes a potential kernel panic on memcpy when FORTIFY_SOURCE
is enabled. Because memory is iomem use appropriate function for
accessing it.

Signed-off-by: default avatarIvan T. Ivanov <iivanov@suse.de>
Link: https://lore.kernel.org/r/20211116084616.24811-1-iivanov@suse.de


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent fa55b7dc

arch/arm/mach-rockchip/platsmp.c

+1 −1
Original line number Diff line number Diff line
@@ -189,7 +189,7 @@ static int __init rockchip_smp_prepare_sram(struct device_node *node) 
	rockchip_boot_fn = __pa_symbol(secondary_startup);



	/* copy the trampoline to sram, that runs during startup of the core */

	memcpy(sram_base_addr, &rockchip_secondary_trampoline, trampoline_sz);

	memcpy_toio(sram_base_addr, &rockchip_secondary_trampoline, trampoline_sz);

	flush_cache_all();

	outer_clean_range(0, trampoline_sz);