| Message ID | 20201121020232.908850-8-saravanak@google.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Refactor fw_devlink to significantly improve boot time | expand |
On Fri, Nov 20, 2020 at 06:02:22PM -0800, Saravana Kannan wrote: > There are multiple locations in the kernel where a struct fwnode_handle > is initialized. Add fwnode_init() so that we have one way of > initializing a fwnode_handle. > > Signed-off-by: Saravana Kannan <saravanak@google.com> > --- > drivers/acpi/property.c | 2 +- > drivers/acpi/scan.c | 2 +- > drivers/base/swnode.c | 2 +- > drivers/firmware/efi/efi-init.c | 8 ++++---- > include/linux/fwnode.h | 6 ++++++ > include/linux/of.h | 2 +- > kernel/irq/irqdomain.c | 2 +- > 7 files changed, 15 insertions(+), 9 deletions(-) In this series, I didn't find any extension of fwnode_init() to be it more than simple assignment. This change looks to me like unnecessary churn and obfuscation rather than improvement. "...ops = &...;" is pretty standard in the kernel to initialize ops structures. Thanks
On Sat, Dec 5, 2020 at 11:26 PM Leon Romanovsky <leon@kernel.org> wrote: > > On Fri, Nov 20, 2020 at 06:02:22PM -0800, Saravana Kannan wrote: > > There are multiple locations in the kernel where a struct fwnode_handle > > is initialized. Add fwnode_init() so that we have one way of > > initializing a fwnode_handle. > > > > Signed-off-by: Saravana Kannan <saravanak@google.com> > > --- > > drivers/acpi/property.c | 2 +- > > drivers/acpi/scan.c | 2 +- > > drivers/base/swnode.c | 2 +- > > drivers/firmware/efi/efi-init.c | 8 ++++---- > > include/linux/fwnode.h | 6 ++++++ > > include/linux/of.h | 2 +- > > kernel/irq/irqdomain.c | 2 +- > > 7 files changed, 15 insertions(+), 9 deletions(-) > > In this series, I didn't find any extension of fwnode_init() to be it more > than simple assignment. This change looks to me like unnecessary churn and > obfuscation rather than improvement. > > "...ops = &...;" is pretty standard in the kernel to initialize ops > structures. Subsequent patches make fwnode_init() do more stuff. -Saravana
On Mon, Dec 07, 2020 at 11:25:15AM -0800, Saravana Kannan wrote: > On Sat, Dec 5, 2020 at 11:26 PM Leon Romanovsky <leon@kernel.org> wrote: > > > > On Fri, Nov 20, 2020 at 06:02:22PM -0800, Saravana Kannan wrote: > > > There are multiple locations in the kernel where a struct fwnode_handle > > > is initialized. Add fwnode_init() so that we have one way of > > > initializing a fwnode_handle. > > > > > > Signed-off-by: Saravana Kannan <saravanak@google.com> > > > --- > > > drivers/acpi/property.c | 2 +- > > > drivers/acpi/scan.c | 2 +- > > > drivers/base/swnode.c | 2 +- > > > drivers/firmware/efi/efi-init.c | 8 ++++---- > > > include/linux/fwnode.h | 6 ++++++ > > > include/linux/of.h | 2 +- > > > kernel/irq/irqdomain.c | 2 +- > > > 7 files changed, 15 insertions(+), 9 deletions(-) > > > > In this series, I didn't find any extension of fwnode_init() to be it more > > than simple assignment. This change looks to me like unnecessary churn and > > obfuscation rather than improvement. > > > > "...ops = &...;" is pretty standard in the kernel to initialize ops > > structures. > > Subsequent patches make fwnode_init() do more stuff. But not in this series, right? Thanks > > -Saravana
On Mon, Dec 7, 2020 at 11:54 AM Leon Romanovsky <leon@kernel.org> wrote: > > On Mon, Dec 07, 2020 at 11:25:15AM -0800, Saravana Kannan wrote: > > On Sat, Dec 5, 2020 at 11:26 PM Leon Romanovsky <leon@kernel.org> wrote: > > > > > > On Fri, Nov 20, 2020 at 06:02:22PM -0800, Saravana Kannan wrote: > > > > There are multiple locations in the kernel where a struct fwnode_handle > > > > is initialized. Add fwnode_init() so that we have one way of > > > > initializing a fwnode_handle. > > > > > > > > Signed-off-by: Saravana Kannan <saravanak@google.com> > > > > --- > > > > drivers/acpi/property.c | 2 +- > > > > drivers/acpi/scan.c | 2 +- > > > > drivers/base/swnode.c | 2 +- > > > > drivers/firmware/efi/efi-init.c | 8 ++++---- > > > > include/linux/fwnode.h | 6 ++++++ > > > > include/linux/of.h | 2 +- > > > > kernel/irq/irqdomain.c | 2 +- > > > > 7 files changed, 15 insertions(+), 9 deletions(-) > > > > > > In this series, I didn't find any extension of fwnode_init() to be it more > > > than simple assignment. This change looks to me like unnecessary churn and > > > obfuscation rather than improvement. > > > > > > "...ops = &...;" is pretty standard in the kernel to initialize ops > > > structures. > > > > Subsequent patches make fwnode_init() do more stuff. > > But not in this series, right? In this series. The very next patch - Patch 8/17 :) -Saravana
On Fri, 20 Nov 2020 18:02:22 -0800, Saravana Kannan wrote: > There are multiple locations in the kernel where a struct fwnode_handle > is initialized. Add fwnode_init() so that we have one way of > initializing a fwnode_handle. > > Signed-off-by: Saravana Kannan <saravanak@google.com> > --- > drivers/acpi/property.c | 2 +- > drivers/acpi/scan.c | 2 +- > drivers/base/swnode.c | 2 +- > drivers/firmware/efi/efi-init.c | 8 ++++---- > include/linux/fwnode.h | 6 ++++++ > include/linux/of.h | 2 +- > kernel/irq/irqdomain.c | 2 +- > 7 files changed, 15 insertions(+), 9 deletions(-) > Acked-by: Rob Herring <robh@kernel.org>
On Mon, Dec 07, 2020 at 12:36:43PM -0800, Saravana Kannan wrote: > On Mon, Dec 7, 2020 at 11:54 AM Leon Romanovsky <leon@kernel.org> wrote: > > > > On Mon, Dec 07, 2020 at 11:25:15AM -0800, Saravana Kannan wrote: > > > On Sat, Dec 5, 2020 at 11:26 PM Leon Romanovsky <leon@kernel.org> wrote: > > > > > > > > On Fri, Nov 20, 2020 at 06:02:22PM -0800, Saravana Kannan wrote: > > > > > There are multiple locations in the kernel where a struct fwnode_handle > > > > > is initialized. Add fwnode_init() so that we have one way of > > > > > initializing a fwnode_handle. > > > > > > > > > > Signed-off-by: Saravana Kannan <saravanak@google.com> > > > > > --- > > > > > drivers/acpi/property.c | 2 +- > > > > > drivers/acpi/scan.c | 2 +- > > > > > drivers/base/swnode.c | 2 +- > > > > > drivers/firmware/efi/efi-init.c | 8 ++++---- > > > > > include/linux/fwnode.h | 6 ++++++ > > > > > include/linux/of.h | 2 +- > > > > > kernel/irq/irqdomain.c | 2 +- > > > > > 7 files changed, 15 insertions(+), 9 deletions(-) > > > > > > > > In this series, I didn't find any extension of fwnode_init() to be it more > > > > than simple assignment. This change looks to me like unnecessary churn and > > > > obfuscation rather than improvement. > > > > > > > > "...ops = &...;" is pretty standard in the kernel to initialize ops > > > > structures. > > > > > > Subsequent patches make fwnode_init() do more stuff. > > > > But not in this series, right? > > In this series. The very next patch - Patch 8/17 :) Thanks, sorry for the noise. > > -Saravana
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index d04de10a63e4..24e87b630573 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -76,7 +76,7 @@ static bool acpi_nondev_subnode_extract(const union acpi_object *desc, return false; dn->name = link->package.elements[0].string.pointer; - dn->fwnode.ops = &acpi_data_fwnode_ops; + fwnode_init(&dn->fwnode, &acpi_data_fwnode_ops); dn->parent = parent; INIT_LIST_HEAD(&dn->data.properties); INIT_LIST_HEAD(&dn->data.subnodes); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index bc6a79e33220..519963bcc047 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1589,7 +1589,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, device->device_type = type; device->handle = handle; device->parent = acpi_bus_get_parent(handle); - device->fwnode.ops = &acpi_device_fwnode_ops; + fwnode_init(&device->fwnode, &acpi_device_fwnode_ops); acpi_set_device_status(device, sta); acpi_device_get_busid(device); acpi_set_pnp_ids(handle, &device->pnp, type); diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index 010828fc785b..4a4b2008fbc2 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -653,7 +653,7 @@ swnode_register(const struct software_node *node, struct swnode *parent, swnode->parent = parent; swnode->allocated = allocated; swnode->kobj.kset = swnode_kset; - swnode->fwnode.ops = &software_node_ops; + fwnode_init(&swnode->fwnode, &software_node_ops); ida_init(&swnode->child_ids); INIT_LIST_HEAD(&swnode->entry); diff --git a/drivers/firmware/efi/efi-init.c b/drivers/firmware/efi/efi-init.c index f55a92ff12c0..b148f1459fb3 100644 --- a/drivers/firmware/efi/efi-init.c +++ b/drivers/firmware/efi/efi-init.c @@ -359,9 +359,7 @@ static const struct fwnode_operations efifb_fwnode_ops = { .add_links = efifb_add_links, }; -static struct fwnode_handle efifb_fwnode = { - .ops = &efifb_fwnode_ops, -}; +static struct fwnode_handle efifb_fwnode; static int __init register_gop_device(void) { @@ -375,8 +373,10 @@ static int __init register_gop_device(void) if (!pd) return -ENOMEM; - if (IS_ENABLED(CONFIG_PCI)) + if (IS_ENABLED(CONFIG_PCI)) { + fwnode_init(&efifb_fwnode, &efifb_fwnode_ops); pd->dev.fwnode = &efifb_fwnode; + } err = platform_device_add_data(pd, &screen_info, sizeof(screen_info)); if (err) diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index e0abafbb17f8..5589799708b5 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -170,6 +170,12 @@ struct fwnode_operations { } while (false) #define get_dev_from_fwnode(fwnode) get_device((fwnode)->dev) +static inline void fwnode_init(struct fwnode_handle *fwnode, + const struct fwnode_operations *ops) +{ + fwnode->ops = ops; +} + extern u32 fw_devlink_get_flags(void); #endif diff --git a/include/linux/of.h b/include/linux/of.h index 5d51891cbf1a..27fba2472eee 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -108,7 +108,7 @@ static inline void of_node_init(struct device_node *node) #if defined(CONFIG_OF_KOBJ) kobject_init(&node->kobj, &of_node_ktype); #endif - node->fwnode.ops = &of_fwnode_ops; + fwnode_init(&node->fwnode, &of_fwnode_ops); } #if defined(CONFIG_OF_KOBJ) diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index cf8b374b892d..06fce7e39033 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -91,7 +91,7 @@ struct fwnode_handle *__irq_domain_alloc_fwnode(unsigned int type, int id, fwid->type = type; fwid->name = n; fwid->pa = pa; - fwid->fwnode.ops = &irqchip_fwnode_ops; + fwnode_init(&fwid->fwnode, &irqchip_fwnode_ops); return &fwid->fwnode; } EXPORT_SYMBOL_GPL(__irq_domain_alloc_fwnode);
There are multiple locations in the kernel where a struct fwnode_handle is initialized. Add fwnode_init() so that we have one way of initializing a fwnode_handle. Signed-off-by: Saravana Kannan <saravanak@google.com> --- drivers/acpi/property.c | 2 +- drivers/acpi/scan.c | 2 +- drivers/base/swnode.c | 2 +- drivers/firmware/efi/efi-init.c | 8 ++++---- include/linux/fwnode.h | 6 ++++++ include/linux/of.h | 2 +- kernel/irq/irqdomain.c | 2 +- 7 files changed, 15 insertions(+), 9 deletions(-)