netdev - [PATCH net-next 2/6] net: fec: avoid BD pointer type cast to 32bit

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:   Tue, 11 Apr 2017 19:13:04 +0800
From:   Fugang Duan <fugang.duan@....com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <bhutchings@...arflare.com>,
        <stephen@...workplumber.org>, <fugang.duan@....com>
Subject: [PATCH net-next 2/6] net: fec: avoid BD pointer type cast to 32bit

In aarch64 system, the BD pointer is 64bit, and the high-order 32-bits
of the address is effective, so replace usigned with (void *) type to
aovid 64bit address is casted to 32bit in .fec_enet_get_nextdesc() and
.fec_enet_get_prevdesc() functions.

Signed-off-by: Fugang Duan <fugang.duan@....com>
---
 drivers/net/ethernet/freescale/fec_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 886a9c9..172624c 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -235,14 +235,14 @@ static struct bufdesc *fec_enet_get_nextdesc(struct bufdesc *bdp,
 					     struct bufdesc_prop *bd)
 {
 	return (bdp >= bd->last) ? bd->base
-			: (struct bufdesc *)(((unsigned)bdp) + bd->dsize);
+			: (struct bufdesc *)(((void *)bdp) + bd->dsize);
 }
 
 static struct bufdesc *fec_enet_get_prevdesc(struct bufdesc *bdp,
 					     struct bufdesc_prop *bd)
 {
 	return (bdp <= bd->base) ? bd->last
-			: (struct bufdesc *)(((unsigned)bdp) - bd->dsize);
+			: (struct bufdesc *)(((void *)bdp) - bd->dsize);
 }
 
 static int fec_enet_get_bd_index(struct bufdesc *bdp,
-- 
1.9.1