2007-06-03 22:06:57

by David Lamparter

[permalink] [raw]
Subject: [PATCH] cfg80211: fix signed macaddress in sysfs

Fix signedness mixup making mac addresses show up strangely
(like 00:11:22:33:44:ffffffaa) in /sys/class/ieee80211/*/macaddress.

Signed-off-by: David Lamparter <[email protected]>
---

net/wireless/sysfs.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 7844be4..374d16d 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -33,7 +33,7 @@ static ssize_t _show_permaddr(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
+ unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;

return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);


2007-06-04 11:41:09

by Johannes Berg

[permalink] [raw]
Subject: Re: [PATCH] cfg80211: fix signed macaddress in sysfs

On Mon, 2007-06-04 at 00:06 +0200, David Lamparter wrote:
> Fix signedness mixup making mac addresses show up strangely
> (like 00:11:22:33:44:ffffffaa) in /sys/class/ieee80211/*/macaddress.

Huh, my mistake, patch looks good. Do we care for this in .22 still?

Acked-by: Johannes Berg <[email protected]>


> Signed-off-by: David Lamparter <[email protected]>
> ---
>
> net/wireless/sysfs.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
> index 7844be4..374d16d 100644
> --- a/net/wireless/sysfs.c
> +++ b/net/wireless/sysfs.c
> @@ -33,7 +33,7 @@ static ssize_t _show_permaddr(struct device *dev,
> struct device_attribute *attr,
> char *buf)
> {
> - char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
> + unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
>
> return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
> addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);

This probably should also use MAC_FMT/MAC_ARG, hah. Oh well, I'll fix it
up later.

johannes


Attachments:
signature.asc (190.00 B)
This is a digitally signed message part