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linux/drivers/nvme/common
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Eric Biggers ba6e9472b4 nvme-auth: Avoid C=1 warning in nvme_auth_derive_tls_psk() 
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>
History 2026-07-06 11:28:31 -07:00
..
tests nvme-auth: common: add KUnit tests for TLS key derivation 2026-03-27 07:35:00 -07:00
.kunitconfig nvme-auth: common: add KUnit tests for TLS key derivation 2026-03-27 07:35:00 -07:00
auth.c nvme-auth: Avoid C=1 warning in nvme_auth_derive_tls_psk() 2026-07-06 11:28:31 -07:00
Kconfig nvme-auth: common: remove selections of no-longer used crypto modules 2026-03-27 07:35:03 -07:00
keyring.c nvme-keyring: add nvme_tls_psk_refresh() 2025-03-20 16:53:54 -07:00
Makefile nvme-auth: common: add KUnit tests for TLS key derivation 2026-03-27 07:35:00 -07:00