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SubjectRe: [PATCH resend] uapi: fix linux/nfc.h userspace compilation errors
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On 26/12/2021 12:42, Krzysztof Kozlowski wrote:
> On 26/12/2021 00:42, Dmitry V. Levin wrote:
>> Replace sa_family_t with __kernel_sa_family_t to fix the following
>> linux/nfc.h userspace compilation errors:
>>
>> /usr/include/linux/nfc.h:266:2: error: unknown type name 'sa_family_t'
>> sa_family_t sa_family;
>> /usr/include/linux/nfc.h:274:2: error: unknown type name 'sa_family_t'
>> sa_family_t sa_family;
>>
>> Link: https://lore.kernel.org/lkml/20170220181613.GB11185@altlinux.org/
>
> Please skip the link. There will be link added for current patch which
> leads to this discussion. There was no discussion in 2017.
>
>> Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
>> ---
>> The patch was submitted almost 5 years ago, and I was under impression
>> that it was applied among others of this kind, but, apparently,
>> it's still relevant.
>>
>> include/uapi/linux/nfc.h | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
>> index f6e3c8c9c744..aadad43d943a 100644
>> --- a/include/uapi/linux/nfc.h
>> +++ b/include/uapi/linux/nfc.h
>> @@ -263,7 +263,7 @@ enum nfc_sdp_attr {
>> #define NFC_SE_ENABLED 0x1
>>
>> struct sockaddr_nfc {
>> - sa_family_t sa_family;
>> + __kernel_sa_family_t sa_family;
>
> include/uapi/linux/nfc.h includes linux/socket.h which defines typedef:
> __kernel_sa_family_t sa_family_t;
> so how exactly the build is being fixed? How to reproduce it?
>

Ok, I see the error - when user-space does not include sys/socket.h.
Makes sense, can you resend with removed Link and with:
Fixes: 23b7869c0fd0 ("NFC: add the NFC socket raw protocol")

Fixes: d646960f7986 ("NFC: Initial LLCP support")


Best regards,
Krzysztof

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