Re: linux-next: build failure after merge of the origin tree

[Alan Maguire]

On 22/06/2026 10:41, Mark Brown wrote:
> On Wed, Jun 17, 2026 at 04:02:43PM +0100, Mark Brown wrote:
>> Hi all,
>>
>> After merging the origin tree, today's linux-next build (perf.log perf)
>> failed like this:
>>
>> util/btf.c: In function '__btf_type__find_member_by_name':
>> util/btf.c:19:43: error: comparison of integer expressions of different signedness: 'int' and '__u32' {aka 'unsigned int'} [-Werror=sign-compare]
>>    19 |         for (i = 0, m = btf_members(t); i < btf_vlen(t); i++, m++) {
>>       |                                           ^
>> cc1: all warnings being treated as errors
>>
>> Triggered by commit:
>>
>>    f7a6b9eaff3e6 (bpf: Extend BTF UAPI vlen, kinds to use unused bits)
> 
> This issue is still present today.

thanks for catching this; I sent [1] which should resolve the failure.

Alan

[1] https://lore.kernel.org/all/20260622103418.579115-1-alan.maguire@xxxxxxxxxx/