linux-kernel - Re: Linux 4.9.180 build fails with gcc 9 and 'cleanup_module' specifies less restrictive attribute than its target …

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Message-ID: <20190805115540.GB8189@kroah.com>
Date:   Mon, 5 Aug 2019 13:55:40 +0200
From:   Greg KH <greg@...ah.com>
To:     Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc:     Rolf Eike Beer <eb@...ix.com>, stable@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Linux 4.9.180 build fails with gcc 9 and 'cleanup_module' specifies less restrictive attribute than its target …

On Fri, Aug 02, 2019 at 06:55:53PM +0200, Miguel Ojeda wrote:
> On Fri, Aug 2, 2019 at 5:56 PM Greg KH <greg@...ah.com> wrote:
> >
> > I see a ton of warnings on those kernels today.  I'll look into it next
> > week after I apply your patches to see what's missing.
> 
> Yeah, the objtool ones -- I thought you were referring to the
> -Wmissing-attributes that Rolf asked about (I am not sure why Rolf has
> those as -Werror rather than warnings, though).
> 
> I can take a look at the objtool ones and see if applying some of the
> patches helps, although I have never looked into how objtool works, so
> no promises :)

I think I got it working now, all looks good for 4.9.y, 4.14.y and
4.19.y for gcc9 so far.  I'll leave 4.4.y alone :)

thanks,

greg k-h