Re: [PATCH -next v2] fs-verity: Use struct_size() helper in enable_verity()

[Eric Biggers <ebiggers@xxxxxxxxxx>]

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

- Eric