Using -Oline -j 96 W=1 redirect to /tmp/tmp.HtDGsS7J8q and /tmp/tmp.3oQSTa99lL
LLVM=1 cc="ccache clang"
clang version 21.1.8 (Fedora 21.1.8-4.fc43)
Tree base:
bf9cf80cab81 ("net: macb: Fix tx/rx malfunction after phy link down and up")
Baseline building the tree
make[1]: Entering directory '/srv/nipa-poller/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC [M]  net/ipv6/ip6_fib.o
  LD [M]  net/ipv6/ipv6.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_adv_rss.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_ptp.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_fdir.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_ethtool.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_txrx.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_virtchnl.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_main.o
  LD [M]  drivers/net/ethernet/intel/iavf/iavf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#588)
  CC [M]  drivers/net/ethernet/intel/iavf/iavf.mod.o
  CC [M]  net/ipv6/ipv6.mod.o
  LD [M]  drivers/net/ethernet/intel/iavf/iavf.ko
  LD [M]  net/ipv6/ipv6.ko
Building the tree before the patch
make[1]: Entering directory '/srv/nipa-poller/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_main.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_ethtool.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_virtchnl.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_fdir.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_adv_rss.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_txrx.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_ptp.o
  LD [M]  drivers/net/ethernet/intel/iavf/iavf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#588)
  CC [M]  drivers/net/ethernet/intel/iavf/iavf.mod.o
  LD [M]  drivers/net/ethernet/intel/iavf/iavf.ko
Building the tree with the patch
make[1]: Entering directory '/srv/nipa-poller/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_main.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_ethtool.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_virtchnl.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_fdir.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_adv_rss.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_txrx.o
  CC [M]  drivers/net/ethernet/intel/iavf/iavf_ptp.o
  LD [M]  drivers/net/ethernet/intel/iavf/iavf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#588)
  CC [M]  drivers/net/ethernet/intel/iavf/iavf.mod.o
  LD [M]  drivers/net/ethernet/intel/iavf/iavf.ko