From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Russell King <rmk+kernel@armlinux.org.uk>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.9 08/38] ARM: 8799/1: mm: fix pci_ioremap_io() offset check
Date: Tue, 16 Oct 2018 00:14:52 -0400 [thread overview]
Message-ID: <20181016041522.135789-8-sashal@kernel.org> (raw)
In-Reply-To: <20181016041522.135789-1-sashal@kernel.org>
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[ Upstream commit 3a58ac65e2d7969bcdf1b6acb70fa4d12a88e53e ]
IO_SPACE_LIMIT is the ending address of the PCI IO space, i.e
something like 0xfffff (and not 0x100000).
Therefore, when offset = 0xf0000 is passed as argument, this function
fails even though the offset + SZ_64K fits below the
IO_SPACE_LIMIT. This makes the last chunk of 64 KB of the I/O space
not usable as it cannot be mapped.
This patch fixes that by substracing 1 to offset + SZ_64K, so that we
compare the addrss of the last byte of the I/O space against
IO_SPACE_LIMIT instead of the address of the first byte of what is
after the I/O space.
Fixes: c2794437091a4 ("ARM: Add fixed PCI i/o mapping")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/mm/ioremap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index ff0eed23ddf1..66e5d8765601 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -473,7 +473,7 @@ void pci_ioremap_set_mem_type(int mem_type)
int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr)
{
- BUG_ON(offset + SZ_64K > IO_SPACE_LIMIT);
+ BUG_ON(offset + SZ_64K - 1 > IO_SPACE_LIMIT);
return ioremap_page_range(PCI_IO_VIRT_BASE + offset,
PCI_IO_VIRT_BASE + offset + SZ_64K,
--
2.17.1
next prev parent reply other threads:[~2018-10-16 4:15 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 4:14 [PATCH AUTOSEL 4.9 01/38] xfrm: Validate address prefix lengths in the xfrm selector Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 02/38] xfrm6: call kfree_skb when skb is toobig Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 03/38] mac80211: Always report TX status Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 04/38] cfg80211: reg: Init wiphy_idx in regulatory_hint_core() Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 05/38] mac80211: fix pending queue hang due to TX_DROP Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 06/38] cfg80211: Address some corner cases in scan result channel updating Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 07/38] mac80211: TDLS: fix skb queue/priority assignment Sasha Levin
2018-10-16 4:14 ` Sasha Levin [this message]
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 09/38] xfrm: validate template mode Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 10/38] ARM: dts: BCM63xx: Fix incorrect interrupt specifiers Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 11/38] net: macb: Clean 64b dma addresses if they are not detected Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 12/38] net: hns: fix for unmapping problem when SMMU is on Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 13/38] soc: fsl: qbman: qman: avoid allocating from non existing gen_pool Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 14/38] soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift() Sasha Levin
2018-10-16 4:14 ` [PATCH AUTOSEL 4.9 15/38] nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 16/38] mac80211_hwsim: do not omit multicast announce of first added radio Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 17/38] Bluetooth: SMP: fix crash in unpairing Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 18/38] pxa168fb: prepare the clock Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 19/38] qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 20/38] bonding: avoid possible dead-lock Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 21/38] qed: Avoid constant logical operation warning in qed_vf_pf_acquire Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 22/38] bnxt_en: Fix TX timeout during netpoll Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 23/38] asix: Check for supported Wake-on-LAN modes Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 24/38] ax88179_178a: " Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 25/38] lan78xx: " Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 26/38] sr9800: " Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 27/38] r8152: Check for supported Wake-on-LAN Modes Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 28/38] smsc75xx: Check for Wake-on-LAN modes Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 29/38] smsc95xx: " Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 30/38] qlcnic: fix Tx descriptor corruption on 82xx devices Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 31/38] i2c: i2c-scmi: fix for i2c_smbus_write_block_data Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 32/38] perf/ring_buffer: Prevent concurent ring buffer access Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 33/38] perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 34/38] net: fec: fix rare tx timeout Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 35/38] declance: Fix continuation with the adapter identification message Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 36/38] net/usb: cancel pending work when unbinding smsc75xx Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 37/38] net: cxgb3_main: fix a missing-check bug Sasha Levin
2018-10-16 4:15 ` [PATCH AUTOSEL 4.9 38/38] mm/vmstat.c: fix outdated vmstat_text Sasha Levin
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=20181016041522.135789-8-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=rmk+kernel@armlinux.org.uk \
--cc=stable@vger.kernel.org \
--cc=thomas.petazzoni@bootlin.com \
--cc=thomas.petazzoni@free-electrons.com \
/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