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    SubjectRe: [PATCH 2/4] wcn36xx: Change indication list lock to spinlock
    On Sun, 27 Dec 2015 17:34:25 -0800
    Bjorn Andersson <bjorn@kryo.se> wrote:

    > In preparation for handling incoming messages from IRQ context, change
    > the indication list lock to a spinlock
    >
    > Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
    > ---
    > drivers/net/wireless/ath/wcn36xx/smd.c | 12 ++++++------
    > drivers/net/wireless/ath/wcn36xx/wcn36xx.h | 2 +-
    > 2 files changed, 7 insertions(+), 7 deletions(-)
    >
    > diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
    > index 6b5dbe6f0d0a..4307429740a9 100644
    > --- a/drivers/net/wireless/ath/wcn36xx/smd.c
    > +++ b/drivers/net/wireless/ath/wcn36xx/smd.c
    > @@ -2165,10 +2165,10 @@ static void wcn36xx_smd_rsp_process(struct wcn36xx *wcn, void *buf, size_t len)
    > msg_ind->msg_len = len;
    > memcpy(msg_ind->msg, buf, len);
    >
    > - mutex_lock(&wcn->hal_ind_mutex);
    > + spin_lock(&wcn->hal_ind_lock);

    If you are going to handle messages in IRQ context, that better be a spin_lock_irq() or spin_lock_bh().


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