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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-09-25 19:03:56 +0200
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-09-25 19:03:56 +0200
commit593d1006cdf710ab3469c0c37c184fea0bc3da97 (patch)
treee4db58440018a52089e8d6b39160f753ab10df99 /drivers/net/ethernet/i825xx/znet.c
parentMerge remote-tracking branch 'tip/smp/hotplug' into next.2012.09.25b (diff)
parentMerge tag 'v3.6-rc7' into core/rcu (diff)
downloadlinux-593d1006cdf710ab3469c0c37c184fea0bc3da97.tar.xz
linux-593d1006cdf710ab3469c0c37c184fea0bc3da97.zip
Merge remote-tracking branch 'tip/core/rcu' into next.2012.09.25b
Resolved conflict in kernel/sched/core.c using Peter Zijlstra's approach from https://lkml.org/lkml/2012/9/5/585.
Diffstat (limited to 'drivers/net/ethernet/i825xx/znet.c')
-rw-r--r--drivers/net/ethernet/i825xx/znet.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ethernet/i825xx/znet.c b/drivers/net/ethernet/i825xx/znet.c
index bd1f1ef91e19..ba4e0cea3506 100644
--- a/drivers/net/ethernet/i825xx/znet.c
+++ b/drivers/net/ethernet/i825xx/znet.c
@@ -139,8 +139,11 @@ struct znet_private {
/* Only one can be built-in;-> */
static struct net_device *znet_dev;
+#define NETIDBLK_MAGIC "NETIDBLK"
+#define NETIDBLK_MAGIC_SIZE 8
+
struct netidblk {
- char magic[8]; /* The magic number (string) "NETIDBLK" */
+ char magic[NETIDBLK_MAGIC_SIZE]; /* The magic number (string) "NETIDBLK" */
unsigned char netid[8]; /* The physical station address */
char nettype, globalopt;
char vendor[8]; /* The machine vendor and product name. */
@@ -373,14 +376,16 @@ static int __init znet_probe (void)
struct znet_private *znet;
struct net_device *dev;
char *p;
+ char *plast = phys_to_virt(0x100000 - NETIDBLK_MAGIC_SIZE);
int err = -ENOMEM;
/* This code scans the region 0xf0000 to 0xfffff for a "NETIDBLK". */
- for(p = (char *)phys_to_virt(0xf0000); p < (char *)phys_to_virt(0x100000); p++)
- if (*p == 'N' && strncmp(p, "NETIDBLK", 8) == 0)
+ for(p = (char *)phys_to_virt(0xf0000); p <= plast; p++)
+ if (*p == 'N' &&
+ strncmp(p, NETIDBLK_MAGIC, NETIDBLK_MAGIC_SIZE) == 0)
break;
- if (p >= (char *)phys_to_virt(0x100000)) {
+ if (p > plast) {
if (znet_debug > 1)
printk(KERN_INFO "No Z-Note ethernet adaptor found.\n");
return -ENODEV;