linux-kernel - Re: [git pull] drm fixes for 5.19-rc7

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Date:   Fri, 15 Jul 2022 14:09:15 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Dave Airlie <airlied@...il.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [git pull] drm fixes for 5.19-rc7

On Fri, Jul 15, 2022 at 01:36:17PM +1000, Dave Airlie wrote:
> Matthew Auld (1):
>       drm/i915/ttm: fix sg_table construction

This patch breaks i386_defconfig with both GCC and clang:

  ld: drivers/gpu/drm/i915/i915_scatterlist.o: in function `i915_rsgt_from_mm_node':
  i915_scatterlist.c:(.text+0x1a7): undefined reference to `__udivdi3'

  ld.lld: error: undefined symbol: __udivdi3
  >>> referenced by i915_scatterlist.c
  >>>               gpu/drm/i915/i915_scatterlist.o:(i915_rsgt_from_mm_node) in archive drivers/built-in.a

It was reported by Stephen in -next [1] and there is a fix [2] that
works for me but it doesn't appear to be applied yet (at least, it is
not in drm-intel-fixes at the moment). It is a little disappointing to
see new build errors being introduced before -rc7, especially when
visible with a defconfig...

[1]: https://lore.kernel.org/20220713221454.67bb20df@canb.auug.org.au/
[2]: https://lore.kernel.org/20220712174050.592550-1-matthew.auld@intel.com/

Cheers,
Nathan