linux-kernel - Re: linux-next: manual merge of the char-misc tree with the drm-intel tree

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Message-ID: <20211105125122.21d336ac@canb.auug.org.au>
Date:   Fri, 5 Nov 2021 12:51:22 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Greg KH <greg@...ah.com>, Arnd Bergmann <arnd@...db.de>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Intel Graphics <intel-gfx@...ts.freedesktop.org>,
        DRI <dri-devel@...ts.freedesktop.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Matthew Auld <matthew.auld@...el.com>
Subject: Re: linux-next: manual merge of the char-misc tree with the
 drm-intel tree

Hi all,

On Thu, 28 Oct 2021 18:27:53 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> 
> Today's linux-next merge of the char-misc tree got a conflict in:
> 
>   drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
> 
> between commit:
> 
>   5740211ea442 ("drm/i915/dmabuf: fix broken build")
> 
> from the drm-intel tree and commit:
> 
>   16b0314aa746 ("dma-buf: move dma-buf symbols into the DMA_BUF module namespace")
> 
> from the char-misc tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
> index a45d0ec2c5b6,abb854281347..000000000000
> --- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
> @@@ -12,13 -13,8 +13,15 @@@
>   #include "i915_gem_object.h"
>   #include "i915_scatterlist.h"
>   
>  +#if defined(CONFIG_X86)
>  +#include <asm/smp.h>
>  +#else
>  +#define wbinvd_on_all_cpus() \
>  +	pr_warn(DRIVER_NAME ": Missing cache flush in %s\n", __func__)
>  +#endif
>  +
> + MODULE_IMPORT_NS(DMA_BUF);
> + 
>   I915_SELFTEST_DECLARE(static bool force_different_devices;)
>   
>   static struct drm_i915_gem_object *dma_buf_to_obj(struct dma_buf *buf)

This is now a conflict between the drm-intel tree and Linux' tree.

-- 
Cheers,
Stephen Rothwell

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