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| author |   Tomas Winkler <tomas.winkler@intel.com> | 2014-02-19 17:35:47 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-28 15:15:56 -0800 |
| commit | 6aae48ff18f2fcfb533d2b448ecae16d1de006c1 (patch) | |
| tree | 1e886fe2f579ed8dea6f594219e591f7c6820d89 /drivers/misc/mei/mei_dev.h | |
| parent | mei: txe: include irqreturn.h for irqreturn_t etc (diff) | |
| download | linux-dev-6aae48ff18f2fcfb533d2b448ecae16d1de006c1.tar.xz linux-dev-6aae48ff18f2fcfb533d2b448ecae16d1de006c1.zip | |
mei: add mei_hbuf_acquire wrapper
A client has to acquire host buffer
before writing, we add lock like wrapper
to replace the code snippet
if (dev->hbuf_is_ready)
dev->hbuf_is_ready = false;
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 030b29e1c92e..52499bc5a068 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -630,6 +630,8 @@ static inline int mei_count_full_read_slots(struct mei_device *dev) return dev->ops->rdbuf_full_slots(dev); } +bool mei_hbuf_acquire(struct mei_device *dev); + #if IS_ENABLED(CONFIG_DEBUG_FS) int mei_dbgfs_register(struct mei_device *dev, const char *name); void mei_dbgfs_deregister(struct mei_device *dev); |