linux-kernel - Re: linux-next: manual merge of the char-misc tree with the driver-core tree

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Message-ID: <20190709092003.6087a9c4@canb.auug.org.au>
Date:   Tue, 9 Jul 2019 09:20:03 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Greg KH <greg@...ah.com>, Arnd Bergmann <arnd@...db.de>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Nadav Amit <namit@...are.com>
Subject: Re: linux-next: manual merge of the char-misc tree with the
 driver-core tree

Hi all,

On Thu, 13 Jun 2019 15:53:44 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the char-misc tree got a conflict in:
> 
>   drivers/misc/vmw_balloon.c
> 
> between commit:
> 
>   225afca60b8a ("vmw_balloon: no need to check return value of debugfs_create functions")
> 
> from the driver-core tree and commits:
> 
>   83a8afa72e9c ("vmw_balloon: Compaction support")
>   5d1a86ecf328 ("vmw_balloon: Add memory shrinker")
> 
> 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/misc/vmw_balloon.c
> index fdf5ad757226,043eed845246..000000000000
> --- a/drivers/misc/vmw_balloon.c
> +++ b/drivers/misc/vmw_balloon.c
> @@@ -1553,15 -1942,26 +1932,24 @@@ static int __init vmballoon_init(void
>   	if (x86_hyper_type != X86_HYPER_VMWARE)
>   		return -ENODEV;
>   
> - 	for (page_size = VMW_BALLOON_4K_PAGE;
> - 	     page_size <= VMW_BALLOON_LAST_SIZE; page_size++)
> - 		INIT_LIST_HEAD(&balloon.page_sizes[page_size].pages);
> - 
> - 
>   	INIT_DELAYED_WORK(&balloon.dwork, vmballoon_work);
>   
> + 	error = vmballoon_register_shrinker(&balloon);
> + 	if (error)
> + 		goto fail;
> + 
>  -	error = vmballoon_debugfs_init(&balloon);
>  -	if (error)
>  -		goto fail;
>  +	vmballoon_debugfs_init(&balloon);
>   
> + 	/*
> + 	 * Initialization of compaction must be done after the call to
> + 	 * balloon_devinfo_init() .
> + 	 */
> + 	balloon_devinfo_init(&balloon.b_dev_info);
> + 	error = vmballoon_compaction_init(&balloon);
> + 	if (error)
> + 		goto fail;
> + 
> + 	INIT_LIST_HEAD(&balloon.huge_pages);
>   	spin_lock_init(&balloon.comm_lock);
>   	init_rwsem(&balloon.conf_sem);
>   	balloon.vmci_doorbell = VMCI_INVALID_HANDLE;

I am still getting this conflict (the commit ids may have changed).
Just a reminder in case you think Linus may need to know.

-- 
Cheers,
Stephen Rothwell

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