linux-kernel - Re: [PATCH RESEND] staging: rtl8192u: ieee80211: Fix sparse endianness warnings

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, 1 Jun 2015 08:24:17 +0900
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Gaston Gonzalez <gascoar@...il.com>
Cc:	cristina.opriceana@...il.com, hamohammed.sa@...il.com,
	gdonald@...il.com, mahfouz.saif.elyazal@...il.com,
	paul.gortmaker@...driver.com, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND] staging: rtl8192u: ieee80211: Fix sparse
 endianness warnings

On Sun, May 31, 2015 at 08:07:21PM -0300, Gaston Gonzalez wrote:
> On Mon, Jun 01, 2015 at 07:17:39AM +0900, Greg KH wrote:
> > On Sun, May 31, 2015 at 12:17:48PM -0300, Gaston Gonzalez wrote:
> > > Fix the following sparse warnings:
> > > 
> > > drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:663:32: warning: incorrect type in assignment (different base types)
> > > drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:663:32:    expected restricted __le16 [usertype] frame_ctl
> > > drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:663:32:    got int
> > > drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:664:50: warning: invalid assignment: |=
> > > drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:664:50:    left side has type restricted __le16
> > > drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:664:50:    right side has type int
> > > 
> > > 
> > > Signed-off-by: Gaston Gonzalez <gascoar@...il.com>
> > > ---
> > >  drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c | 5 +++--
> > >  1 file changed, 3 insertions(+), 2 deletions(-)
> > 
> > Still doesn't apply, but this might be a git bug, see below:
> > 
> > > diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
> > > index d2e8b12..0477ba1 100644
> > > --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
> > > +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
> > > @@ -660,2 +660,2 @@ inline struct sk_buff *ieee80211_authentication_req(struct ieee80211_network *be
> > >  	auth = (struct ieee80211_authentication *)
> > >  		skb_put(skb, sizeof(struct ieee80211_authentication));
> > > 
> > > -	auth->header.frame_ctl = IEEE80211_STYPE_AUTH;
> > > -	if (challengelen) auth->header.frame_ctl |= IEEE80211_FCTL_WEP;
> > > +	auth->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_AUTH);
> > > +	if (challengelen)
> > > +		auth->header.frame_ctl |= cpu_to_le16(IEEE80211_FCTL_WEP);
> > > 
> > >  	auth->header.duration_id = 0x013a; //FIXME
> > > 
> > > --
> > > 2.1.4
> > 
> > This patch is not created properly.  Did you edit it by hand?  If not,
> > we need to report a bug as the diff is obviously wrong, look at the @@@
> > line.
> > 
> > Can you update your version of git to see if it's fixed there?
> > 
> > Also, patch tells you that this is broken:
> > 
> > checking file drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
> > patch: **** malformed patch at line 132:                skb_put(skb, sizeof(struct ieee80211_authentication));
> 
> Greg,
> 
> The patch was prepared using git format-patch. The git version I'm using:
> 
> gaston22:\-$ git --version 
> git version 2.1.4
> 
> I did deleted 4 whitespaces by hand after running checkpatch.pl on the patch.
> Could that drive the issue? However, I could properly apply the patch using 'git
> am' from an email and get the git log right.

Yes, but is there really a commit there?  That's what messed me up last
time, git applied it, but with no actual diff (which is probably a bug
too, just a different one...)

And if you edited it by hand, that might explain the issue, what did the
"original" patch look like?

> I'll try with a newer version of git as you suggest.
> Any other check I could do before the submission? I really don't like making
> noise :-(

Let's see the original version first before blaming git.  Odds are you
got something wrong when editing the patch by hand.

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/