Re: [PATCH v1 04/10] xhci: dbc: Use ATTRIBUTE_GROUPS()

From: Mathias Nyman
Date: Wed Oct 11 2023 - 10:17:05 EST


On 2.10.2023 19.16, Andy Shevchenko wrote:
Embrace ATTRIBUTE_GROUPS() to avoid boiler plate code.
This should not introduce any functional changes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-dbgcap.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 92869c67a430..3c90410e9cde 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -1124,7 +1124,7 @@ static DEVICE_ATTR_RW(dbc_idProduct);
static DEVICE_ATTR_RW(dbc_bcdDevice);
static DEVICE_ATTR_RW(dbc_bInterfaceProtocol);
-static struct attribute *dbc_dev_attributes[] = {
+static struct attribute *dbc_dev_attrs[] = {
&dev_attr_dbc.attr,
&dev_attr_dbc_idVendor.attr,
&dev_attr_dbc_idProduct.attr,
@@ -1132,10 +1132,7 @@ static struct attribute *dbc_dev_attributes[] = {
&dev_attr_dbc_bInterfaceProtocol.attr,
NULL
};
-
-static const struct attribute_group dbc_dev_attrib_grp = {
- .attrs = dbc_dev_attributes,
-};
+ATTRIBUTE_GROUPS(dbc_dev);
struct xhci_dbc *
xhci_alloc_dbc(struct device *dev, void __iomem *base, const struct dbc_driver *driver)
@@ -1161,7 +1158,7 @@ xhci_alloc_dbc(struct device *dev, void __iomem *base, const struct dbc_driver *
INIT_DELAYED_WORK(&dbc->event_work, xhci_dbc_handle_events);
spin_lock_init(&dbc->lock);
- ret = sysfs_create_group(&dev->kobj, &dbc_dev_attrib_grp);
+ ret = sysfs_create_groups(&dev->kobj, &dbc_dev_groups)
Compiler warns:

drivers/usb/host/xhci-dbgcap.c:1186:40: error: passing argument 2 of ‘sysfs_create_groups’ from incompatible pointer type

should probably be:
sysfs_create_groups(&dev->kobj, dbc_dev_groups)

-Mathias