nvme: add context annotations in tcp.c

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The nvme_tcp_ctrl_list and nvme_tcp_ctrl::list are protected by
nvme_tcp_ctrl_mutex. Define nvme_tcp_ctrl_list using
LIST_HEAD_GUARDED(nvme_tcp_ctrl_list, nvme_tcp_ctrl_mutex) and
annotate nvme_tcp_ctrl::list using
__guarded_by(&nvme_tcp_ctrl_mutex) so that Clang's context analysis
can validate accesses against the corresponding locking requirements.

It is safe to initialize nvme_tcp_ctrl::list while allocating the
controller object because the list entry has not yet been added to
nvme_tcp_ctrl_list. Annotate the initialization with context_unsafe()
to suppress the corresponding Clang warning.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>

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Nilay Shroff 2026-07-13 17:24:19 +05:30 • committed by Keith Busch

parent e906dc2a33

commit 27a75a6290

1 changed files with 9 additions and 4 deletions

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drivers/nvme/host/tcp.c

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