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Linux 6.9: Fix UBSAN errors in zap_micro.c 

You can use the UBSAN_SANITIZE_* Kbuild options to exclude certain
kernel objects from the UBSAN checks.  We previously excluded
zap_micro.o with:

UBSAN_SANITIZE_zap_micro.o := n

For some reason that didn't work for the 6.9 kernel, which wants us
to use:

UBSAN_SANITIZE_zfs/zap_micro.o := n

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #16278
Closes #16330
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Tony Hutter 2024-07-11 16:41:26 -07:00 committed by GitHub
parent 4367312760
commit 156a64161b
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module/Kbuild.in
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@ -490,6 +490,7 @@ zfs-$(CONFIG_PPC64) += $(addprefix zfs/,$(ZFS_OBJS_PPC_PPC64))
UBSAN_SANITIZE_zap_leaf.o := n UBSAN_SANITIZE_zap_leaf.o := n
UBSAN_SANITIZE_zap_micro.o := n UBSAN_SANITIZE_zap_micro.o := n
UBSAN_SANITIZE_sa.o := n UBSAN_SANITIZE_sa.o := n
UBSAN_SANITIZE_zfs/zap_micro.o := n
# Suppress incorrect warnings from versions of objtool which are not # Suppress incorrect warnings from versions of objtool which are not
# aware of x86 EVEX prefix instructions used for AVX512. # aware of x86 EVEX prefix instructions used for AVX512.