diff options
Diffstat (limited to 'include/scsi/scsi_device.h')
-rw-r--r-- | include/scsi/scsi_device.h | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index b401c82036be..ebf31b16dc49 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h | |||
@@ -223,13 +223,13 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, | |||
223 | struct scsi_device *); | 223 | struct scsi_device *); |
224 | 224 | ||
225 | /** | 225 | /** |
226 | * shost_for_each_device - iterate over all devices of a host | 226 | * shost_for_each_device - iterate over all devices of a host |
227 | * @sdev: iterator | 227 | * @sdev: the &struct scsi_device to use as a cursor |
228 | * @host: host whiches devices we want to iterate over | 228 | * @shost: the &struct scsi_host to iterate over |
229 | * | 229 | * |
230 | * This traverses over each devices of @shost. The devices have | 230 | * Iterator that returns each device attached to @shost. This loop |
231 | * a reference that must be released by scsi_host_put when breaking | 231 | * takes a reference on each device and releases it at the end. If |
232 | * out of the loop. | 232 | * you break out of the loop, you must call scsi_device_put(sdev). |
233 | */ | 233 | */ |
234 | #define shost_for_each_device(sdev, shost) \ | 234 | #define shost_for_each_device(sdev, shost) \ |
235 | for ((sdev) = __scsi_iterate_devices((shost), NULL); \ | 235 | for ((sdev) = __scsi_iterate_devices((shost), NULL); \ |
@@ -237,17 +237,17 @@ extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *, | |||
237 | (sdev) = __scsi_iterate_devices((shost), (sdev))) | 237 | (sdev) = __scsi_iterate_devices((shost), (sdev))) |
238 | 238 | ||
239 | /** | 239 | /** |
240 | * __shost_for_each_device - iterate over all devices of a host (UNLOCKED) | 240 | * __shost_for_each_device - iterate over all devices of a host (UNLOCKED) |
241 | * @sdev: iterator | 241 | * @sdev: the &struct scsi_device to use as a cursor |
242 | * @host: host whiches devices we want to iterate over | 242 | * @shost: the &struct scsi_host to iterate over |
243 | * | 243 | * |
244 | * This traverses over each devices of @shost. It does _not_ take a | 244 | * Iterator that returns each device attached to @shost. It does _not_ |
245 | * reference on the scsi_device, thus it the whole loop must be protected | 245 | * take a reference on the scsi_device, so the whole loop must be |
246 | * by shost->host_lock. | 246 | * protected by shost->host_lock. |
247 | * | 247 | * |
248 | * Note: The only reason why drivers would want to use this is because | 248 | * Note: The only reason to use this is because you need to access the |
249 | * they're need to access the device list in irq context. Otherwise you | 249 | * device list in interrupt context. Otherwise you really want to use |
250 | * really want to use shost_for_each_device instead. | 250 | * shost_for_each_device instead. |
251 | */ | 251 | */ |
252 | #define __shost_for_each_device(sdev, shost) \ | 252 | #define __shost_for_each_device(sdev, shost) \ |
253 | list_for_each_entry((sdev), &((shost)->__devices), siblings) | 253 | list_for_each_entry((sdev), &((shost)->__devices), siblings) |