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    Subject[PATCH v8 08/31] locking/spinlock: introduce `_raw_spin_lock_init`
    Date
    From: Wedson Almeida Filho <wedsonaf@google.com>

    A Rust helper (introduced in a later patch) needs to call
    `raw_spin_lock_init` with a passed key, rather than define
    one in place.

    In order to do that, this changes the `raw_spin_lock_init` macro
    to call a new `_raw_spin_lock_init` function which takes the key
    as an extra parameter.

    Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
    Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
    Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
    Co-developed-by: Miguel Ojeda <ojeda@kernel.org>
    Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
    ---
    include/linux/spinlock.h | 8 +++++++-
    1 file changed, 7 insertions(+), 1 deletion(-)

    diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
    index ad1c91884ed8..27df5380c1e4 100644
    --- a/include/linux/spinlock.h
    +++ b/include/linux/spinlock.h
    @@ -99,11 +99,17 @@
    extern void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name,
    struct lock_class_key *key, short inner);

    +static inline void _raw_spin_lock_init(raw_spinlock_t *lock, const char *name,
    + struct lock_class_key *key)
    +{
    + __raw_spin_lock_init(lock, name, key, LD_WAIT_SPIN);
    +}
    +
    # define raw_spin_lock_init(lock) \
    do { \
    static struct lock_class_key __key; \
    \
    - __raw_spin_lock_init((lock), #lock, &__key, LD_WAIT_SPIN); \
    + _raw_spin_lock_init((lock), #lock, &__key); \
    } while (0)

    #else
    --
    2.37.1
    \
     
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