From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: build failure on linus' latest master branch
Date: Tue, 11 Oct 2016 15:02:19 +0300
Message-ID: <20161011120219.GM9282@leon.nu>
References: <01ca01d2230c$b8ade6f0$2a09b4d0$@opengridcomputing.com>
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To: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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On Mon, Oct 10, 2016 at 10:41:09AM -0500, Steve Wise wrote:
> Hey Leon, I hit this trying to compile Linus' latest master branch.
>
>  CC [M]  drivers/net/ethernet/mellanox/mlx5/core/pagealloc.o
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function
> =E2reclaim_pages_cmd.clone.0=E2:
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:347: error: call to
> =E2__compiletime_assert_347=E2 declared with attribute error: BUILD_BUG_O=
N failed:
> __mlx5_bit_off(manage_pages_out, pas[i]) % 64
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function =E2give_=
pages=E2:
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:290: error: call to
> =E2__compiletime_assert_290=E2 declared with attribute error: BUILD_BUG_O=
N failed:
> __mlx5_bit_off(manage_pages_in, pas[i]) % 64
> make[5]: *** [drivers/net/ethernet/mellanox/mlx5/core/pagealloc.o] Error 1
>
> Is there a fix for this?

We investigated a lot this failure and it appears on specific and very
old GCC 4.4.
http://www.spinics.net/lists/linux-rdma/msg39135.html
http://marc.info/?t=3D147614305200001&r=3D1&w=3D2

And the fix is http://marc.info/?l=3Dlinux-netdev&m=3D147615976207362&w=3D2

>
> Thanks,
>
> Steve.
>
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