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

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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@suse.de>
Link: https://lore.kernel.org/r/20211116084616.24811-1-iivanov@suse.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Ivan T. Ivanov 2021-11-16 10:46:16 +02:00 committed by Heiko Stuebner
parent fa55b7dcdc
commit 423e85e97a
1 changed files with 1 additions and 1 deletions
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arch/arm/mach-rockchip/platsmp.c
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@ -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);