diff mbox series

[02/18] dmaengine: idxd: add driver name

Message ID 162163569407.260470.8069733178174299145.stgit@djiang5-desk3.ch.intel.com (mailing list archive)
State New
Headers show
Series Fix idxd sub-drivers setup | expand

Commit Message

Dave Jiang May 21, 2021, 10:21 p.m. UTC
Add name field in idxd_device_driver so we don't have to touch the
'struct device_driver' during declaration.

Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
 drivers/dma/idxd/idxd.h  |    1 +
 drivers/dma/idxd/init.c  |    1 +
 drivers/dma/idxd/sysfs.c |    4 +---
 3 files changed, 3 insertions(+), 3 deletions(-)

Comments

Jason Gunthorpe May 24, 2021, 12:05 a.m. UTC | #1
On Fri, May 21, 2021 at 03:21:34PM -0700, Dave Jiang wrote:
> Add name field in idxd_device_driver so we don't have to touch the
> 'struct device_driver' during declaration.

I'm not actually sure these two patches are an improvement. I view
this idiom as being valuable if there is a huge number of kernel users
as it does simplify them, but for something small like this I'd keep
rather it clear and explicitly set the .drv instead of burning CPU
code to do it.

But it isn't a big deal either way

Jason
diff mbox series

Patch

diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h
index da4195a5e2f1..06bf23dabc82 100644
--- a/drivers/dma/idxd/idxd.h
+++ b/drivers/dma/idxd/idxd.h
@@ -34,6 +34,7 @@  enum idxd_type {
 #define IDXD_PMU_EVENT_MAX	64
 
 struct idxd_device_driver {
+	const char *name;
 	struct device_driver drv;
 };
 
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index c46421452c9b..cc6779968bec 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -800,6 +800,7 @@  int __idxd_driver_register(struct idxd_device_driver *idxd_drv, struct module *o
 {
 	struct device_driver *drv = &idxd_drv->drv;
 
+	drv->name = idxd_drv->name;
 	drv->bus = &dsa_bus_type;
 	drv->owner = owner;
 	drv->mod_name = mod_name;
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index c614ffa9a610..9b209788255c 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -323,9 +323,7 @@  struct bus_type dsa_bus_type = {
 };
 
 static struct idxd_device_driver dsa_drv = {
-	.drv = {
-		.name = "dsa",
-	},
+	.name = "dsa",
 };
 
 /* IDXD generic driver setup */