* [REGRESSION] next/pending-fixes: (build) call to undeclared function '__huge_pmd_unshare'; ISO C99 and late...
@ 2026-05-18 13:59 KernelCI bot
0 siblings, 0 replies; only message in thread
From: KernelCI bot @ 2026-05-18 13:59 UTC (permalink / raw)
To: kernelci-results; +Cc: regressions, gus, linux-next
Hello,
New build issue found on next/pending-fixes:
---
call to undeclared function '__huge_pmd_unshare'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] in mm/hugetlb.o (mm/hugetlb.c) [logspec:kbuild,kbuild.compiler.error]
---
- dashboard: https://d.kernelci.org/i/maestro:2586999164f3c8a7d01dd3db2d8850a7c0865475
- giturl: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
- commit HEAD: 298cc5aa5aae60cc009e3cd66ff730bb53e3e1ad
Please include the KernelCI tag when submitting a fix:
Reported-by: kernelci.org bot <bot@kernelci•org>
Log excerpt:
=====================================================
/tmp/kci/linux/mm/hugetlb.c:7281:3: error: call to undeclared function '__huge_pmd_unshare'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
7281 | __huge_pmd_unshare(&tlb, vma, address, ptep, take_locks);
| ^
/tmp/kci/linux/mm/hugetlb.c:7281:3: note: did you mean 'huge_pmd_unshare'?
/tmp/kci/linux/mm/hugetlb.c:6973:5: note: 'huge_pmd_unshare' declared here
6973 | int huge_pmd_unshare(struct mmu_gather *tlb, struct vm_area_struct *vma,
| ^
1 error generated.
=====================================================
# Builds where the incident occurred:
## defconfig+CONFIG_ARM64_64K_PAGES=y on (arm64):
- compiler: clang-21
- config: None
- dashboard: https://d.kernelci.org/build/maestro:6a0b05bad06a47b7c8f81a2c
#kernelci issue maestro:2586999164f3c8a7d01dd3db2d8850a7c0865475
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