Subject: [REGRESSION] next/master: (build) "byte_rev_table" [lib/zlib_deflate/zlib_deflate.ko] undefined! "by...

From: KernelCI bot <[email-masked]>
Date: Thu, 16 Apr 2026 14:59:04 -0000

Hello,

New build issue found on next/master:

---
 "byte_rev_table" [lib/zlib_deflate/zlib_deflate.ko] undefined! "byte_rev_table" [drivers/net/ethernet/spacemit/k1_emac.ko] undefined! "byte_rev_table" [drivers/net/ethernet/stmicro/stmmac/stmmac.ko] undefined! in Module.symvers (/tmp/kci/linux/scripts/Makefile.modpost:147) [logspec:kbuild,kbuild.modpost]
---

- dashboard: https://d.kernelci.org/i/maestro:48f931aecdceb03cad626bb809f8965302b7fc91
- giturl: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
- commit HEAD:  452c3b1ea875276105ac90ba474f72b4cd9b77a2
- tags: next-20260416

Please include the KernelCI tag when submitting a fix:

Reported-by: kernelci.org bot <[email-masked]>

Log excerpt:
=====================================================
ERROR: modpost: "byte_rev_table" [lib/zlib_deflate/zlib_deflate.ko] undefined!
ERROR: modpost: "byte_rev_table" [drivers/net/ethernet/spacemit/k1_emac.ko] undefined!
ERROR: modpost: "byte_rev_table" [drivers/net/ethernet/stmicro/stmmac/stmmac.ko] undefined!

=====================================================

# Builds where the incident occurred:

## defconfig on (riscv):
- compiler: gcc-14
- config: None
- dashboard: https://d.kernelci.org/build/maestro:69e0eea19b5a968309e4e915

#kernelci issue maestro:48f931aecdceb03cad626bb809f8965302b7fc91

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