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* [PATCH AUTOSEL 4.14 1/9] ARM: rockchip: Use memcpy_toio instead of memcpy on smp bring-up
@ 2021-12-21  2:01 ` Sasha Levin
  0 siblings, 0 replies; 13+ messages in thread
From: Sasha Levin @ 2021-12-21  2:01 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Ivan T. Ivanov, Heiko Stuebner, Sasha Levin, linux,
	linux-arm-kernel, linux-rockchip

From: "Ivan T. Ivanov" <iivanov@suse.de>

[ 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@suse.de>
Link: https://lore.kernel.org/r/20211116084616.24811-1-iivanov@suse.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 ecec340ca3457..bb69e6e6defe8 100644
--- a/arch/arm/mach-rockchip/platsmp.c
+++ b/arch/arm/mach-rockchip/platsmp.c
@@ -198,7 +198,7 @@ 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);
 
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 13+ messages in thread
end of thread, other threads:[~2021-12-21  2:07 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-12-21  2:01 [PATCH AUTOSEL 4.14 1/9] ARM: rockchip: Use memcpy_toio instead of memcpy on smp bring-up Sasha Levin
2021-12-21  2:01 ` Sasha Levin
2021-12-21  2:01 ` Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 2/9] mac80211: set up the fwd_skb->dev for mesh forwarding Sasha Levin
2021-12-21  2:01   ` Sasha Levin
2021-12-21  2:01   ` Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 3/9] mac80211: fix a memory leak where sta_info is not freed Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 4/9] phonet: refcount leak in pep_sock_accep Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 5/9] net: bcmgenet: Fix NULL vs IS_ERR() checking Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 6/9] mac80211: Fix the size used for building probe request Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 7/9] block: reduce kblockd_mod_delayed_work_on() CPU consumption Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 8/9] net: usb: lan78xx: add Allied Telesis AT29M2-AF Sasha Levin
2021-12-21  2:01 ` [PATCH AUTOSEL 4.14 9/9] Revert "block: reduce kblockd_mod_delayed_work_on() CPU consumption" Sasha Levin

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