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Date: Fri, 26 Jul 2013 00:25:50 +0200
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Lv Zheng <lv.zheng@...el.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Len Brown <len.brown@...el.com>,
Corey Minyard <minyard@....org>,
Zhao Yakui <yakui.zhao@...el.com>,
linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
openipmi-developer@...ts.sourceforge.net
Subject: Re: [PATCH 08/13] ACPI/IPMI: Cleanup several acpi_ipmi_device members
On Tuesday, July 23, 2013 04:10:06 PM Lv Zheng wrote:
> This is a trivial patch:
> 1. Deletes a member of the acpi_ipmi_device - smi_data which is not
> actually used.
> 2. Updates a member of the acpi_ipmi_device - pnp_dev which is only used
> by dev_warn() invocations, so changes it to struct device.
>
> Signed-off-by: Lv Zheng <lv.zheng@...el.com>
> Reviewed-by: Huang Ying <ying.huang@...el.com>
> ---
> drivers/acpi/acpi_ipmi.c | 30 ++++++++++++++----------------
> 1 file changed, 14 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
> index 0ee1ea6..7f93ffd 100644
> --- a/drivers/acpi/acpi_ipmi.c
> +++ b/drivers/acpi/acpi_ipmi.c
> @@ -63,11 +63,10 @@ struct acpi_ipmi_device {
> struct list_head tx_msg_list;
> spinlock_t tx_msg_lock;
> acpi_handle handle;
> - struct pnp_dev *pnp_dev;
> + struct device *dev;
> ipmi_user_t user_interface;
> int ipmi_ifnum; /* IPMI interface number */
> long curr_msgid;
> - struct ipmi_smi_info smi_data;
> atomic_t refcnt;
> };
>
> @@ -132,7 +131,7 @@ static struct ipmi_driver_data driver_data = {
> };
>
> static struct acpi_ipmi_device *
> -ipmi_dev_alloc(int iface, struct ipmi_smi_info *smi_data, acpi_handle handle)
> +ipmi_dev_alloc(int iface, struct device *pdev, acpi_handle handle)
Why is the second arg called pdev?
> {
> struct acpi_ipmi_device *ipmi_device;
> int err;
> @@ -148,14 +147,13 @@ ipmi_dev_alloc(int iface, struct ipmi_smi_info *smi_data, acpi_handle handle)
> spin_lock_init(&ipmi_device->tx_msg_lock);
>
> ipmi_device->handle = handle;
> - ipmi_device->pnp_dev = to_pnp_dev(get_device(smi_data->dev));
> - memcpy(&ipmi_device->smi_data, smi_data, sizeof(struct ipmi_smi_info));
> + ipmi_device->dev = get_device(pdev);
> ipmi_device->ipmi_ifnum = iface;
>
> err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs,
> ipmi_device, &user);
> if (err) {
> - put_device(smi_data->dev);
> + put_device(pdev);
> kfree(ipmi_device);
> return NULL;
> }
> @@ -175,7 +173,7 @@ acpi_ipmi_dev_get(struct acpi_ipmi_device *ipmi_device)
> static void ipmi_dev_release(struct acpi_ipmi_device *ipmi_device)
> {
> ipmi_destroy_user(ipmi_device->user_interface);
> - put_device(ipmi_device->smi_data.dev);
> + put_device(ipmi_device->dev);
> kfree(ipmi_device);
> }
>
> @@ -263,7 +261,7 @@ static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
> buffer = (struct acpi_ipmi_buffer *)value;
> /* copy the tx message data */
> if (buffer->length > ACPI_IPMI_MAX_MSG_LENGTH) {
> - dev_WARN_ONCE(&tx_msg->device->pnp_dev->dev, true,
> + dev_WARN_ONCE(tx_msg->device->dev, true,
> "Unexpected request (msg len %d).\n",
> buffer->length);
> return -EINVAL;
> @@ -382,11 +380,11 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
> struct acpi_ipmi_device *ipmi_device = user_msg_data;
> int msg_found = 0;
> struct acpi_ipmi_msg *tx_msg;
> - struct pnp_dev *pnp_dev = ipmi_device->pnp_dev;
> + struct device *dev = ipmi_device->dev;
> unsigned long flags;
>
> if (msg->user != ipmi_device->user_interface) {
> - dev_warn(&pnp_dev->dev,
> + dev_warn(dev,
> "Unexpected response is returned. returned user %p, expected user %p\n",
> msg->user, ipmi_device->user_interface);
> goto out_msg;
> @@ -404,7 +402,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
> spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
>
> if (!msg_found) {
> - dev_warn(&pnp_dev->dev,
> + dev_warn(dev,
> "Unexpected response (msg id %ld) is returned.\n",
> msg->msgid);
> goto out_msg;
> @@ -412,7 +410,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
>
> /* copy the response data to Rx_data buffer */
> if (msg->msg.data_len > ACPI_IPMI_MAX_MSG_LENGTH) {
> - dev_WARN_ONCE(&pnp_dev->dev, true,
> + dev_WARN_ONCE(dev, true,
> "Unexpected response (msg len %d).\n",
> msg->msg.data_len);
> goto out_comp;
> @@ -431,7 +429,7 @@ out_msg:
> static void ipmi_register_bmc(int iface, struct device *dev)
> {
> struct acpi_ipmi_device *ipmi_device, *temp;
> - struct pnp_dev *pnp_dev;
> + struct device *pdev;
And here?
> int err;
> struct ipmi_smi_info smi_data;
> acpi_handle handle;
> @@ -445,11 +443,11 @@ static void ipmi_register_bmc(int iface, struct device *dev)
> handle = smi_data.addr_info.acpi_info.acpi_handle;
> if (!handle)
> goto err_ref;
> - pnp_dev = to_pnp_dev(smi_data.dev);
> + pdev = smi_data.dev;
>
> - ipmi_device = ipmi_dev_alloc(iface, &smi_data, handle);
> + ipmi_device = ipmi_dev_alloc(iface, pdev, handle);
> if (!ipmi_device) {
> - dev_warn(&pnp_dev->dev, "Can't create IPMI user interface\n");
> + dev_warn(pdev, "Can't create IPMI user interface\n");
> goto err_ref;
> }
>
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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