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Date: Mon, 3 Sep 2007 01:48:52 +0530 (IST)
From: Satyam Sharma <satyam@...radead.org>
To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
cc: Andrew Morton <akpm@...ux-foundation.org>,
Vasily Averin <vvs@...ru>,
Markus Lidel <Markus.Lidel@...dowconnect.com>
Subject: [PATCH -mm] I2O: Fix "defined but not used" build warnings
drivers/message/i2o/exec-osm.c:539: warning: ‘i2o_exec_lct_notify’ defined but not used
comes when CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=n, because its only callsite
is #ifdef'ed as such. So let's #ifdef the function definition also. Also
move the definition to before the callsite, to get rid of forward prototype.
Signed-off-by: Satyam Sharma <satyam@...radead.org>
---
I have no clue who owns this subsystem, and recent git history is all
over the place.
drivers/message/i2o/exec-osm.c | 94 ++++++++++++++++++++---------------------
1 file changed, 47 insertions(+), 47 deletions(-)
--- linux-2.6.23-rc4-mm1/drivers/message/i2o/exec-osm.c‾fix 2007-09-02 19:25:55.000000000 +0530
+++ linux-2.6.23-rc4-mm1/drivers/message/i2o/exec-osm.c 2007-09-02 19:25:07.000000000 +0530
@@ -41,8 +41,6 @@
struct i2o_driver i2o_exec_driver;
-static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind);
-
/* global wait list for POST WAIT */
static LIST_HEAD(i2o_exec_wait_list);
@@ -369,6 +367,53 @@ static int i2o_exec_remove(struct device
return 0;
};
+#ifdef CONFIG_I2O_LCT_NOTIFY_ON_CHANGES
+/**
+ * i2o_exec_lct_notify - Send a asynchronus LCT NOTIFY request
+ * @c: I2O controller to which the request should be send
+ * @change_ind: change indicator
+ *
+ * This function sends a LCT NOTIFY request to the I2O controller with
+ * the change indicator change_ind. If the change_ind == 0 the controller
+ * replies immediately after the request. If change_ind > 0 the reply is
+ * send after change indicator of the LCT is > change_ind.
+ */
+static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind)
+{
+ i2o_status_block *sb = c->status_block.virt;
+ struct device *dev;
+ struct i2o_message *msg;
+
+ mutex_lock(&c->lct_lock);
+
+ dev = &c->pdev->dev;
+
+ if (i2o_dma_realloc
+ (dev, &c->dlct, le32_to_cpu(sb->expected_lct_size), GFP_KERNEL))
+ return -ENOMEM;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
+ msg->u.head[1] = cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
+ msg->u.s.tcntxt = cpu_to_le32(0x00000000);
+ msg->body[0] = cpu_to_le32(0xffffffff);
+ msg->body[1] = cpu_to_le32(change_ind);
+ msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len);
+ msg->body[3] = cpu_to_le32(c->dlct.phys);
+
+ i2o_msg_post(c, msg);
+
+ mutex_unlock(&c->lct_lock);
+
+ return 0;
+};
+#endif
+
/**
* i2o_exec_lct_modified - Called on LCT NOTIFY reply
* @_work: work struct for a specific controller
@@ -525,51 +570,6 @@ int i2o_exec_lct_get(struct i2o_controll
return rc;
}
-/**
- * i2o_exec_lct_notify - Send a asynchronus LCT NOTIFY request
- * @c: I2O controller to which the request should be send
- * @change_ind: change indicator
- *
- * This function sends a LCT NOTIFY request to the I2O controller with
- * the change indicator change_ind. If the change_ind == 0 the controller
- * replies immediately after the request. If change_ind > 0 the reply is
- * send after change indicator of the LCT is > change_ind.
- */
-static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind)
-{
- i2o_status_block *sb = c->status_block.virt;
- struct device *dev;
- struct i2o_message *msg;
-
- mutex_lock(&c->lct_lock);
-
- dev = &c->pdev->dev;
-
- if (i2o_dma_realloc
- (dev, &c->dlct, le32_to_cpu(sb->expected_lct_size), GFP_KERNEL))
- return -ENOMEM;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
- msg->u.head[1] = cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
- msg->u.s.tcntxt = cpu_to_le32(0x00000000);
- msg->body[0] = cpu_to_le32(0xffffffff);
- msg->body[1] = cpu_to_le32(change_ind);
- msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len);
- msg->body[3] = cpu_to_le32(c->dlct.phys);
-
- i2o_msg_post(c, msg);
-
- mutex_unlock(&c->lct_lock);
-
- return 0;
-};
-
/* Exec OSM driver struct */
struct i2o_driver i2o_exec_driver = {
.name = OSM_NAME,
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