Re: [PATCH RFC 0/6] LLVMLinux: Patches to enable the kernel to be compiled with clang/LLVM

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On 09/02/14 16:01, Marcel Holtmann wrote:
Hi Behan,

These patches remove the use of Variable Length Arrays In Structs (VLAIS) in
crypto related code. Presented here for comments as a whole (since they all do
the same thing in the same way). Once everyone is happy I will submit them
individually to their appropriate maintainers.

The LLVMLinux project aims to fully build the Linux kernel using both gcc and
clang (the C front end for the LLVM compiler infrastructure project).


Jan-Simon Möller (4):
  crypto, dm: LLVMLinux: Remove VLAIS usage from dm-crypt
  crypto: LLVMLinux: Remove VLAIS usage from crypto/hmac.c
  crypto: LLVMLinux: Remove VLAIS usage from libcrc32c.c
  crypto: LLVMLinux: Remove VLAIS usage from crypto/testmgr.c

Vinícius Tinti (2):
  apparmor: LLVMLinux: Remove VLAIS
  btrfs: LLVMLinux: Remove VLAIS

crypto/hmac.c              | 27 +++++++++++++--------------
crypto/testmgr.c           | 16 ++++++++--------
drivers/md/dm-crypt.c      | 38 ++++++++++++++++++--------------------
fs/btrfs/hash.c            | 18 +++++++++---------
lib/libcrc32c.c            | 18 +++++++++---------
security/apparmor/crypto.c | 19 +++++++++----------
6 files changed, 66 insertions(+), 70 deletions(-)
are you sure these are all of them? I know for a fact that we are using the same construct in net/bluetooth/amp.c as well.
There have been other places where this was an issue before too (ext4, mac80211, USB gadget, ...). Some have already been fixed.

Hmm. Yeah, I thought we had a patch for bluetooth too. I can't find it now though.

Suffice it to say that similar patches are required for the other instances of this kind of code elsewhere as well.

Thanks Marcel,

Behan

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Behan Webster
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