From: "Ivan T. Ivanov" <iivanov@suse.de>
To: Heiko Stuebner <heiko@sntech.de>
Cc: Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org
Subject: [PATCH] ARM: rockchip: Use memcpy_toio instead of memcpy on smp bring-up
Date: Tue, 16 Nov 2021 10:46:16 +0200 [thread overview]
Message-ID: <20211116084616.24811-1-iivanov@suse.de> (raw)
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>
---
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 d60856898d97..5ec58d004b7d 100644
--- a/arch/arm/mach-rockchip/platsmp.c
+++ b/arch/arm/mach-rockchip/platsmp.c
@@ -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);
--
2.33.1
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
next reply other threads:[~2021-11-16 8:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-16 8:46 Ivan T. Ivanov [this message]
2021-11-21 18:52 ` [PATCH] ARM: rockchip: Use memcpy_toio instead of memcpy on smp bring-up Heiko Stuebner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211116084616.24811-1-iivanov@suse.de \
--to=iivanov@suse.de \
--cc=heiko@sntech.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-rockchip@lists.infradead.org \
--cc=linux@armlinux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox