From: Greg Kroah-Hartman Date: Fri, 16 Oct 2015 23:55:46 +0000 (-0700) Subject: greybus: loopback: use the bundle struct device instead of the connector X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d9a9ea1b88190a31957489377fd3fee246888373;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git greybus: loopback: use the bundle struct device instead of the connector We are removing struct device from the gb_connection structure in the near future. The gb_bundle structure's struct device should be used as a replacement. This patch moves the loopback driver to use the bundle pointer instead of the connection pointer. Signed-off-by: Greg Kroah-Hartman Reviewed-by: Viresh Kumar Reviewed-by: Alex Elder Reviewed-by: Johan Hovold --- diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index 1ac86c15e974..e1b1be0687a8 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -107,11 +107,11 @@ static ssize_t field##_##pfx##_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ - struct gb_connection *connection; \ + struct gb_bundle *bundle; \ struct gb_loopback *gb; \ if (conn) { \ - connection = to_gb_connection(dev); \ - gb = connection->private; \ + bundle = to_gb_bundle(dev); \ + gb = bundle->private; \ return sprintf(buf, "%u\n", gb->field); \ } else { \ return sprintf(buf, "%u\n", gb_dev.field); \ @@ -124,11 +124,11 @@ static ssize_t name##_##field##_##pfx##_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ - struct gb_connection *connection; \ + struct gb_bundle *bundle; \ struct gb_loopback *gb; \ if (conn) { \ - connection = to_gb_connection(dev); \ - gb = connection->private; \ + bundle = to_gb_bundle(dev); \ + gb = bundle->private; \ return sprintf(buf, "%"#type"\n", gb->name.field); \ } else { \ return sprintf(buf, "%"#type"\n", gb_dev.name.field); \ @@ -142,13 +142,13 @@ static ssize_t name##_avg_##pfx##_show(struct device *dev, \ char *buf) \ { \ struct gb_loopback_stats *stats; \ - struct gb_connection *connection; \ + struct gb_bundle *bundle; \ struct gb_loopback *gb; \ u64 avg; \ u32 count, rem; \ if (conn) { \ - connection = to_gb_connection(dev); \ - gb = connection->private; \ + bundle = to_gb_bundle(dev); \ + gb = bundle->private; \ stats = &gb->name; \ } else { \ stats = &gb_dev.name; \ @@ -170,8 +170,8 @@ static ssize_t field##_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ - struct gb_connection *connection = to_gb_connection(dev); \ - struct gb_loopback *gb = connection->private; \ + struct gb_bundle *bundle = to_gb_bundle(dev); \ + struct gb_loopback *gb = bundle->private; \ return sprintf(buf, "%"#type"\n", gb->field); \ } \ static ssize_t field##_store(struct device *dev, \ @@ -180,13 +180,13 @@ static ssize_t field##_store(struct device *dev, \ size_t len) \ { \ int ret; \ - struct gb_connection *connection = to_gb_connection(dev); \ + struct gb_bundle *bundle = to_gb_bundle(dev); \ mutex_lock(&gb_dev.mutex); \ ret = sscanf(buf, "%"#type, &gb->field); \ if (ret != 1) \ len = -EINVAL; \ else \ - gb_loopback_check_attr(connection); \ + gb_loopback_check_attr(&gb_dev, bundle); \ mutex_unlock(&gb_dev.mutex); \ return len; \ } \ @@ -214,13 +214,13 @@ static ssize_t field##_store(struct device *dev, \ size_t len) \ { \ int ret; \ - struct gb_connection *connection = to_gb_connection(dev); \ + struct gb_bundle *bundle = to_gb_bundle(dev); \ mutex_lock(&gb_dev.mutex); \ ret = sscanf(buf, "%"#type, &gb_dev.field); \ if (ret != 1) \ len = -EINVAL; \ else \ - gb_loopback_check_attr(&gb_dev, connection); \ + gb_loopback_check_attr(&gb_dev, bundle); \ mutex_unlock(&gb_dev.mutex); \ return len; \ } \ @@ -228,7 +228,7 @@ static DEVICE_ATTR_RW(field) static void gb_loopback_reset_stats(struct gb_loopback_device *gb_dev); static void gb_loopback_check_attr(struct gb_loopback_device *gb_dev, - struct gb_connection *connection) + struct gb_bundle *bundle) { struct gb_loopback *gb; @@ -244,7 +244,7 @@ static void gb_loopback_check_attr(struct gb_loopback_device *gb_dev, gb->iteration_count = 0; gb->error = 0; if (kfifo_depth < gb_dev->iteration_max) { - dev_warn(&connection->dev, + dev_warn(&bundle->dev, "cannot log bytes %u kfifo_depth %u\n", gb_dev->iteration_max, kfifo_depth); } @@ -414,14 +414,14 @@ static int gb_loopback_operation_sync(struct gb_loopback *gb, int type, ret = gb_operation_request_send_sync(operation); if (ret) { - dev_err(&gb->connection->dev, + dev_err(&gb->connection->bundle->dev, "synchronous operation failed: %d\n", ret); } else { if (response_size == operation->response->payload_size) { memcpy(response, operation->response->payload, response_size); } else { - dev_err(&gb->connection->dev, + dev_err(&gb->connection->bundle->dev, "response size %zu expected %d\n", operation->response->payload_size, response_size); @@ -482,7 +482,8 @@ static int gb_loopback_transfer(struct gb_loopback *gb, u32 len) goto gb_error; if (memcmp(request->data, response->data, len)) { - dev_err(&gb->connection->dev, "Loopback Data doesn't match\n"); + dev_err(&gb->connection->bundle->dev, + "Loopback Data doesn't match\n"); retval = -EREMOTEIO; } gb->apbridge_latency_ts = (u32)__le32_to_cpu(response->reserved0); @@ -506,21 +507,20 @@ static int gb_loopback_request_recv(u8 type, struct gb_operation *operation) struct gb_connection *connection = operation->connection; struct gb_loopback_transfer_request *request; struct gb_loopback_transfer_response *response; + struct device *dev = &connection->bundle->dev; size_t len; /* By convention, the AP initiates the version operation */ switch (type) { case GB_REQUEST_TYPE_PROTOCOL_VERSION: - dev_err(&connection->dev, - "module-initiated version operation\n"); + dev_err(dev, "module-initiated version operation\n"); return -EINVAL; case GB_LOOPBACK_TYPE_PING: case GB_LOOPBACK_TYPE_SINK: return 0; case GB_LOOPBACK_TYPE_TRANSFER: if (operation->request->payload_size < sizeof(*request)) { - dev_err(&connection->dev, - "transfer request too small (%zu < %zu)\n", + dev_err(dev, "transfer request too small (%zu < %zu)\n", operation->request->payload_size, sizeof(*request)); return -EINVAL; /* -EMSGSIZE */ @@ -528,8 +528,7 @@ static int gb_loopback_request_recv(u8 type, struct gb_operation *operation) request = operation->request->payload; len = le32_to_cpu(request->len); if (len > gb_dev.size_max) { - dev_err(&connection->dev, - "transfer request too large (%zu > %zu)\n", + dev_err(dev, "transfer request too large (%zu > %zu)\n", len, gb_dev.size_max); return -EINVAL; } @@ -537,8 +536,7 @@ static int gb_loopback_request_recv(u8 type, struct gb_operation *operation) if (len) { if (!gb_operation_response_alloc(operation, len, GFP_KERNEL)) { - dev_err(&connection->dev, - "error allocating response\n"); + dev_err(dev, "error allocating response\n"); return -ENOMEM; } response = operation->response->payload; @@ -547,8 +545,7 @@ static int gb_loopback_request_recv(u8 type, struct gb_operation *operation) } return 0; default: - dev_err(&connection->dev, - "unsupported request: %hhu\n", type); + dev_err(dev, "unsupported request: %hhu\n", type); return -EINVAL; } } @@ -755,8 +752,8 @@ static int gb_loopback_fn(void *data) /* All threads achieved at least low_count iterations */ if (gb_dev.iteration_count < low_count) { gb_dev.iteration_count = low_count; - sysfs_notify(&gb->connection->dev.kobj, NULL, - "iteration_count"); + sysfs_notify(&gb->connection->bundle->dev.kobj, + NULL, "iteration_count"); } /* Optionally terminate */ if (gb_dev.iteration_count == gb_dev.iteration_max) { @@ -954,12 +951,12 @@ static int gb_loopback_connection_init(struct gb_connection *connection) /* Create per-connection sysfs and debugfs data-points */ snprintf(name, sizeof(name), "raw_latency_%s", - dev_name(&connection->dev)); + dev_name(&connection->bundle->dev)); gb->file = debugfs_create_file(name, S_IFREG | S_IRUGO, gb_dev.root, gb, &gb_loopback_debugfs_latency_ops); gb->connection = connection; - connection->private = gb; - retval = sysfs_create_groups(&connection->dev.kobj, + connection->bundle->private = gb; + retval = sysfs_create_groups(&connection->bundle->dev.kobj, loopback_con_groups); if (retval) goto out_sysfs_dev; @@ -995,14 +992,14 @@ out_kfifo1: out_kfifo0: kfifo_free(&gb->kfifo_lat); out_sysfs_conn: - sysfs_remove_groups(&connection->dev.kobj, loopback_con_groups); + sysfs_remove_groups(&connection->bundle->dev.kobj, loopback_con_groups); out_sysfs_dev: if (!gb_dev.count) { sysfs_remove_groups(kobj, loopback_dev_groups); debugfs_remove(gb_dev.file); } debugfs_remove(gb->file); - connection->private = NULL; + connection->bundle->private = NULL; out_sysfs: mutex_unlock(&gb_dev.mutex); kfree(gb); @@ -1012,7 +1009,7 @@ out_sysfs: static void gb_loopback_connection_exit(struct gb_connection *connection) { - struct gb_loopback *gb = connection->private; + struct gb_loopback *gb = connection->bundle->private; struct kobject *kobj = &connection->hd->endo->dev.kobj; if (!IS_ERR_OR_NULL(gb->task)) @@ -1020,7 +1017,7 @@ static void gb_loopback_connection_exit(struct gb_connection *connection) mutex_lock(&gb_dev.mutex); - connection->private = NULL; + connection->bundle->private = NULL; kfifo_free(&gb->kfifo_lat); kfifo_free(&gb->kfifo_ts); gb_connection_latency_tag_disable(connection); @@ -1029,7 +1026,8 @@ static void gb_loopback_connection_exit(struct gb_connection *connection) sysfs_remove_groups(kobj, loopback_dev_groups); debugfs_remove(gb_dev.file); } - sysfs_remove_groups(&connection->dev.kobj, loopback_con_groups); + sysfs_remove_groups(&connection->bundle->dev.kobj, + loopback_con_groups); debugfs_remove(gb->file); list_del(&gb->entry); mutex_unlock(&gb_dev.mutex);