nvme-auth: Avoid C=1 warning in nvme_auth_derive_tls_psk()

Browse source

The following works fine with gcc and clang, but sparse warns about
label_len not being an actual constant expression:

    const size_t label_len = sizeof(label) - 1;
    ...
    static_assert(label_len <= 255);

Avoid this by giving label an explicit length and using sizeof(label)
instead of label_len.

Reported-by: John Garry <john.g.garry@oracle.com>
Closes: https://lore.kernel.org/linux-nvme/965a37dd-f698-46b6-9623-1099a13f7e60@oracle.com
Fixes: d126cbaa7d ("nvme-auth: common: use crypto library in nvme_auth_derive_tls_psk()")
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>

...

This commit is contained in:

Eric Biggers 2026-06-25 10:59:11 -07:00 • committed by Keith Busch

parent 3456b52552

commit ba6e9472b4

1 changed files with 6 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

13

drivers/nvme/common/auth.c

View file