On Wed, May 18, 2022 at 08:06:04PM -0700, Eric Biggers wrote: > On Thu, May 19, 2022 at 10:24:50AM +0800, Zhang Jianhua wrote: > > Also, address the following sparse warning: > > fs/verity/enable.c:205:28: warning: using sizeof on a flexible structure > > How can I reproduce this warning? I am using the latest version of sparse, and > I don't see any of these warnings you're reporting. > > $ sparse --version > v0.6.4 > $ make C=2 fs/verity/ > CHECK scripts/mod/empty.c > CALL scripts/checksyscalls.sh > CALL scripts/atomic/check-atomics.sh > DESCEND objtool > CHECK fs/verity/enable.c > CHECK fs/verity/hash_algs.c > CHECK fs/verity/init.c > CHECK fs/verity/measure.c > CHECK fs/verity/open.c > CHECK fs/verity/read_metadata.c > CHECK fs/verity/verify.c > CHECK fs/verity/signature.c > 'make C=2 CHECK="sparse -Wflexible-array-sizeof"' does the trick. However, it produces a *lot* of warnings all over the place. Unless there is an effort to actually address all of these so that this warning can be enabled by default, I don't see the poinnt in addressing these just for the warnings sake. The change to fsverity_ioctl_measure() is definitely just for the warning's sake, so I don't really want to do that one. The change to enable_verity() is a bit less useless, so I could still take that one. - Eric
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