Re: sparc: icmpv6.h:70:2: error: implicit declaration of function '__icmpv6_send'; did you mean 'icmpv6_send'? [-Werror=implicit-function-declaration]

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On Mon, Mar 01, 2021 at 08:47:38PM +0100, Greg Kroah-Hartman wrote:
> On Mon, Mar 01, 2021 at 01:41:20PM -0600, Daniel Díaz wrote:
> > )Hello!
> > 
> > On Mon, 1 Mar 2021 at 13:15, Greg Kroah-Hartman
> > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > >
> > > On Mon, Mar 01, 2021 at 10:42:34PM +0530, Naresh Kamboju wrote:
> > > > On stable rc 5.11 sparc allnoconfig and tinyconfig failed with gcc-8,
> > > > gcc-9 and gcc-10.
> > > >
> > > > make --silent --keep-going --jobs=8
> > > > O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=sparc
> > > > CROSS_COMPILE=sparc64-linux-gnu- 'CC=sccache sparc64-linux-gnu-gcc'
> > > > 'HOSTCC=sccache gcc'
> > > > <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
> > > > In file included from include/net/ndisc.h:50,
> > > >                  from include/net/ipv6.h:21,
> > > >                  from include/linux/sunrpc/clnt.h:28,
> > > >                  from include/linux/nfs_fs.h:32,
> > > >                  from init/do_mounts.c:22:
> > > > include/linux/icmpv6.h: In function 'icmpv6_ndo_send':
> > > > include/linux/icmpv6.h:70:2: error: implicit declaration of function
> > > > '__icmpv6_send'; did you mean 'icmpv6_send'?
> > > > [-Werror=implicit-function-declaration]
> > > >    70 |  __icmpv6_send(skb_in, type, code, info, &parm);
> > > >       |  ^~~~~~~~~~~~~
> > > >       |  icmpv6_send
> > > > cc1: some warnings being treated as errors
> > > > make[2]: *** [scripts/Makefile.build:304: init/do_mounts.o] Error 1
> > > >
> > > > Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
> > >
> > > What is the odds that Linus's tree also fails with this configuration
> > > and arch right now?
> > 
> > We don't see this kind of failure (or any failure whatsoever) on
> > mainline (Linux 5.12-rc1) at the moment.
> 
> Odd, ok, let me dig into this in the morning, I might have missed
> something that needed to be backported here...

Found it, needed one more patch backported.  Now passes my local tests,
will push out new -rcs now...

thanks,

greg k-h



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