On 2018/11/13 04:17, Bruce Ashfield wrote:
> On 2018-11-12 4:49 a.m., He Zhe wrote:
>>
>>
>> On 2018/11/6 00:05, Bruce Ashfield wrote:
>>> On 11/2/18 4:42 AM, He Zhe wrote:
>>>> When merging tag 'v4.18.10' into v4.18/standard/base, 05a9931 "of: fix 
>>>> phandle
>>>> cache creation for DTs with no phandles" from v4.18.10 introduces an 
>>>> undefined
>>>> label "out" and causes the follow compilation error.
>>>>
>>>> drivers/of/base.c: In function 'of_populate_phandle_cache':
>>>> drivers/of/base.c:124:3: error: label 'out' used but not defined
>>>>      goto out;
>>>>      ^~~~
>>>>
>>>> This is because the base of 05a9931 has been modified by b75caf0 "of: 
>>>> allocate /
>>>> free phandle cache outside of the devtree_lock".
>>>>
>>>> This patch picks a part of
>>>> https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?h=
>>>> linux-4.18.y-rt&id=9866102318991051e5e99085d3c88d6483ee70d4
>>>> to fix this error, and can be dropped when rebasing above 9866102.
>>>
>>> merged.
>>
>> Hi Bruce,
>>
>> This also needs to be merged to linux-yocto-dev RT branches.
>
> Are you sure ? linux-yocto-dev doesn't currently have the 4.19-rt
> patches integrated. I thought this was to fixup a merge issue
> between standard/base and the rt patch.

Sorry, a mistake, I thought of linux-yocto which is already ok.

Zhe

>
> Bruce
>
>>
>> Thanks,
>> Zhe
>>
>>>
>>> Bruce
>>>
>>>>
>>>> Signed-off-by: He Zhe <zhe...@windriver.com>
>>>> ---
>>>> This error affects all arches building preempt-rt kernel with "of" by 
>>>> default.
>>>>
>>>>    drivers/of/base.c | 4 ++--
>>>>    1 file changed, 2 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/drivers/of/base.c b/drivers/of/base.c
>>>> index ecb495df4aad..49da3726cda5 100644
>>>> --- a/drivers/of/base.c
>>>> +++ b/drivers/of/base.c
>>>> @@ -119,14 +119,14 @@ void of_populate_phandle_cache(void)
>>>>                phandles++;
>>>>          raw_spin_unlock_irqrestore(&devtree_lock, flags);
>>>> +    kfree(shadow);
>>>>          if (!phandles)
>>>> -        goto out;
>>>> +        return;
>>>>          cache_entries = roundup_pow_of_two(phandles);
>>>>        phandle_cache_mask = cache_entries - 1;
>>>>    -    kfree(shadow);
>>>>        shadow = kcalloc(cache_entries, sizeof(*phandle_cache), GFP_KERNEL);
>>>>          if (!shadow)
>>>>
>>>
>>>
>>
>
>

-- 
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