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

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Date:   Mon, 8 Jul 2019 23:25:12 +0000
From:   Nadav Amit <namit@...are.com>
To:     Greg KH <greg@...ah.com>
CC:     Arnd Bergmann <arnd@...db.de>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: linux-next: manual merge of the char-misc tree with the
 driver-core tree

> On Jul 8, 2019, at 4:20 PM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> 
> 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.

Greg,

Can you please take care of it, as you are the maintainer of char-misc
and the committer of the patch?