net: ieee8021q: fix insufficient table-size assertion

[ Upstream commit 21deb2d9 ]

_Static_assert(ARRAY_SIZE(map) != IEEE8021Q_TT_MAX - 1) rejects only a
length of 7 and allows any other mismatch. Replace it with a strict
equality test via a helper macro so that every mapping table must have
exactly IEEE8021Q_TT_MAX (8) entries.

Signed-off-by: RubenKelevra <rubenkelevra@gmail.com>
Link: https://patch.msgid.link/20250626205907.1566384-1-rubenkelevra@gmail.com


Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>