It apparently has something to do with rcu and "address spaces" but I'm
not completely sure what sparse is complaining about --- and whether it
is a false positive or a bug in the posix_acl.h.
Can someone explain what's going on, and whether it's something to be
concerned about?
Thanks,
- Ted
% ../make-ext4 C=1 fs/ext4/acl.o
make[2]: Nothing to be done for `all'.
GEN /u1/ext4/Makefile
CHK include/generated/uapi/linux/version.h
make[2]: Nothing to be done for `relocs'.
Using /usr/projects/linux/ext4 as source for kernel
CHK include/generated/utsrelease.h
CALL /usr/projects/linux/ext4/scripts/checksyscalls.sh
<stdin>:1220:2: warning: #warning syscall kcmp not implemented [-Wcpp]
<stdin>:1223:2: warning: #warning syscall finit_module not implemented [-Wcpp]
CHECK /usr/projects/linux/ext4/fs/ext4/acl.c
/usr/projects/linux/ext4/include/linux/posix_acl.h:137:9: warning: incorrect type in assignment (different address spaces)
/usr/projects/linux/ext4/include/linux/posix_acl.h:137:9: expected struct posix_acl *<noident>
/usr/projects/linux/ext4/include/linux/posix_acl.h:137:9: got struct posix_acl [noderef] <asn:4>*<noident>
/usr/projects/linux/ext4/include/linux/posix_acl.h:137:9: warning: incorrect type in assignment (different address spaces)
/usr/projects/linux/ext4/include/linux/posix_acl.h:137:9: expected struct posix_acl *<noident>
/usr/projects/linux/ext4/include/linux/posix_acl.h:137:9: got struct posix_acl [noderef] <asn:4>*<noident>
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