linux-kernel - [PATCH v4 7/8] EDAC, pnd2: Use proper I/O accessors and address space annotation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 31 Jan 2022 17:13:45 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Wolfram Sang <wsa@...nel.org>, Jean Delvare <jdelvare@...e.de>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Tan Jui Nee <jui.nee.tan@...el.com>,
        Kate Hsuan <hpa@...hat.com>,
        Jonathan Yong <jonathan.yong@...el.com>,
        linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-gpio@...r.kernel.org,
        platform-driver-x86@...r.kernel.org
Cc:     Borislav Petkov <bp@...en8.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        James Morse <james.morse@....com>,
        Robert Richter <rric@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Peter Tyser <ptyser@...-inc.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Andy Shevchenko <andy@...nel.org>,
        Mark Gross <markgross@...nel.org>,
        Henning Schild <henning.schild@...mens.com>
Subject: [PATCH v4 7/8] EDAC, pnd2: Use proper I/O accessors and address space annotation

The driver uses rather voodoo kind of castings and I/O accessors.
Replace it with proper __iomem annotation and readl()/readq() calls.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Reviewed-by: Tony Luck <tony.luck@...el.com>
---
 drivers/edac/pnd2_edac.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index c94ca1f790c4..7d1df120e24c 100644
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -265,7 +265,7 @@ static u64 get_sideband_reg_base_addr(void)
 static int dnv_rd_reg(int port, int off, int op, void *data, size_t sz, char *name)
 {
 	struct pci_dev *pdev;
-	char *base;
+	void __iomem *base;
 	u64 addr;
 	unsigned long size;
 
@@ -297,8 +297,9 @@ static int dnv_rd_reg(int port, int off, int op, void *data, size_t sz, char *na
 			return -ENODEV;
 
 		if (sz == 8)
-			*(u32 *)(data + 4) = *(u32 *)(base + off + 4);
-		*(u32 *)data = *(u32 *)(base + off);
+			*(u64 *)data = readq(base + off);
+		else
+			*(u32 *)data = readl(base + off);
 
 		iounmap(base);
 	}
-- 
2.34.1