From: "Ivan T. Ivanov" <iivanov@xxxxxxx> [ Upstream commit 423e85e97aaf69e5198bbec6811e3825c8b5019a ] 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: Ivan T. Ivanov <iivanov@xxxxxxx> Link: https://lore.kernel.org/r/20211116084616.24811-1-iivanov@xxxxxxx Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/arm/mach-rockchip/platsmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c index 3e7a4b761a953..47b6739937c64 100644 --- a/arch/arm/mach-rockchip/platsmp.c +++ b/arch/arm/mach-rockchip/platsmp.c @@ -194,7 +194,7 @@ static int __init rockchip_smp_prepare_sram(struct device_node *node) rockchip_boot_fn = virt_to_phys(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); -- 2.34.1
