Re: Could the fix for broken gcc-plugins with gcc-11 be backported to 5.10?

[Greg KH <gregkh@linuxfoundation.org>]

On Mon, Dec 06, 2021 at 02:24:29PM +0100, Thomas Lindroth wrote:
> On 12/6/21 14:04, Greg KH wrote:
> > On Mon, Dec 06, 2021 at 01:59:31PM +0100, Thomas Lindroth wrote:
> > > Build support for gcc-plugins are not detected with gcc-11 in lts kernels.
> > > Gentoo and Arch apply their own patch to fix the problem in their distribution
> > > kernels but I would prefer if a proper fix was applied upstream.
> > > 
> > > https://bugs.gentoo.org/814200 a gentoo report with the relevant info.
> > > 
> > > I've searched for any upstream discussions about the problem but I've only found
> > > one message saying the backport needs an additional fix. That was almost a year
> > > ago. https://www.spinics.net/lists/stable/msg438000.html
> > 
> > We can not take a patch in a stable kernel release unless it is already
> > in Linus's tree.  Please work to get a patch accepted there first,
> > before worrying about older kernel versions.
> > 
> > thanks,
> > 
> > greg k-h
> > 
> 
> The problem was fixed in Linus tree in commit 67a5a68013056cbcf0a647e36cb6f4622fb6a470
> "gcc-plugins: fix gcc 11 indigestion with plugins..." added in v5.11
> 
> That's the patch that needed some kind of additional fix before it could be backported
> but that fix never materialized.

If you have a working version, based on a distro's use, please provide
it and I will be glad to pick it up.

thanks,

greg k-h