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authorStefan Richter <stefanr@s5r6.in-berlin.de>2010-06-15 02:00:11 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2010-06-19 13:01:41 +0200
commit5030c807907ae90ad21e9220c1a9d592558deba2 (patch)
tree4bb37dffd32a71e9c7712df14938af6bb73656c7
parent0fcff4e39323f466a47684d7c8ffa77e1be86c8a (diff)
ieee1394: remove unused variables
which caused gcc 4.6 to warn about variable 'XYZ' set but not used. sbp2.c, unit_characteristics: The underlying problem which was spotted here --- an incomplete implementation --- is already 50% fixed in drivers/firewire/sbp2.c which observes mgt_ORB_timeout but not yet ORB_size. raw1394.c, length_conflict; dv1394.c, ts_off: Impossible to tell why these variables are there. We can safely remove them though because we don't need a compiler warning to realize that we are dealing with (at least stylistically) flawed code here. dv1394.c, packet_time: This was used in debug macro that is only compiled in with DV1394_DEBUG_LEVEL >= 2 defined at compile-time. Just drop it since nobody debugs dv1394 anymore. Avoids noise in regular kernel builds. dv1394.c, ohci; eth1394.c, priv: These variables clearly can go away. Somebody wanted to use them but then didn't (or not anymore). Note, all of this code is considered to be at its end of life and is thus not really meant to receive janitorial updates anymore. But if we can easily remove noisy warnings from kernel builds, we should. Reported-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
-rw-r--r--drivers/ieee1394/dv1394.c14
-rw-r--r--drivers/ieee1394/eth1394.c3
-rw-r--r--drivers/ieee1394/raw1394.c3
-rw-r--r--drivers/ieee1394/sbp2.c11
4 files changed, 7 insertions, 24 deletions
diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index adaefabc40e..f8fcbd04844 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -610,7 +610,7 @@ static void frame_prepare(struct video_card *video, unsigned int this_frame)
} else {
u32 transmit_sec, transmit_cyc;
- u32 ts_cyc, ts_off;
+ u32 ts_cyc;
/* DMA is stopped, so this is the very first frame */
video->active_frame = this_frame;
@@ -636,7 +636,6 @@ static void frame_prepare(struct video_card *video, unsigned int this_frame)
transmit_sec += transmit_cyc/8000;
transmit_cyc %= 8000;
- ts_off = ct_off;
ts_cyc = transmit_cyc + 3;
ts_cyc %= 8000;
@@ -2004,7 +2003,7 @@ static void ir_tasklet_func(unsigned long data)
int sof=0; /* start-of-frame flag */
struct frame *f;
- u16 packet_length, packet_time;
+ u16 packet_length;
int i, dbc=0;
struct DMA_descriptor_block *block = NULL;
u16 xferstatus;
@@ -2024,11 +2023,6 @@ static void ir_tasklet_func(unsigned long data)
sizeof(struct packet));
packet_length = le16_to_cpu(p->data_length);
- packet_time = le16_to_cpu(p->timestamp);
-
- irq_printk("received packet %02d, timestamp=%04x, length=%04x, sof=%02x%02x\n", video->current_packet,
- packet_time, packet_length,
- p->data[0], p->data[1]);
/* get the descriptor based on packet_buffer cursor */
f = video->frames[video->current_packet / MAX_PACKETS];
@@ -2320,7 +2314,6 @@ static void dv1394_add_host(struct hpsb_host *host)
static void dv1394_host_reset(struct hpsb_host *host)
{
- struct ti_ohci *ohci;
struct video_card *video = NULL, *tmp_vid;
unsigned long flags;
@@ -2328,9 +2321,6 @@ static void dv1394_host_reset(struct hpsb_host *host)
if (strcmp(host->driver->name, OHCI1394_DRIVER_NAME))
return;
- ohci = (struct ti_ohci *)host->hostdata;
-
-
/* find the corresponding video_cards */
spin_lock_irqsave(&dv1394_cards_lock, flags);
list_for_each_entry(tmp_vid, &dv1394_cards, list) {
diff --git a/drivers/ieee1394/eth1394.c b/drivers/ieee1394/eth1394.c
index a4e9dcb6d4a..bc289e367e3 100644
--- a/drivers/ieee1394/eth1394.c
+++ b/drivers/ieee1394/eth1394.c
@@ -1258,7 +1258,6 @@ static void ether1394_iso(struct hpsb_iso *iso)
char *buf;
struct eth1394_host_info *hi;
struct net_device *dev;
- struct eth1394_priv *priv;
unsigned int len;
u32 specifier_id;
u16 source_id;
@@ -1288,8 +1287,6 @@ static void ether1394_iso(struct hpsb_iso *iso)
(be32_to_cpu(data[1]) & 0xff000000) >> 24;
source_id = be32_to_cpu(data[0]) >> 16;
- priv = netdev_priv(dev);
-
if (info->channel != (iso->host->csr.broadcast_channel & 0x3f)
|| specifier_id != ETHER1394_GASP_SPECIFIER_ID) {
/* This packet is not for us */
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index b563d5e9fa2..2c417ae7622 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -1015,7 +1015,7 @@ static int arm_write(struct hpsb_host *host, int nodeid, int destid,
struct arm_addr *arm_addr = NULL;
struct arm_request *arm_req = NULL;
struct arm_response *arm_resp = NULL;
- int found = 0, size = 0, rcode = -1, length_conflict = 0;
+ int found = 0, size = 0, rcode = -1;
struct arm_request_response *arm_req_resp = NULL;
DBGMSG("arm_write called by node: %X "
@@ -1054,7 +1054,6 @@ static int arm_write(struct hpsb_host *host, int nodeid, int destid,
}
if (arm_addr->rec_length < length) {
DBGMSG("arm_write blocklength too big -> rcode_data_error");
- length_conflict = 1;
rcode = RCODE_DATA_ERROR; /* hardware error, data is unavailable */
}
if (rcode == -1) {
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index f199896c411..d3a136c70c4 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -1351,12 +1351,11 @@ static void sbp2_parse_unit_directory(struct sbp2_lu *lu,
struct csr1212_keyval *kv;
struct csr1212_dentry *dentry;
u64 management_agent_addr;
- u32 unit_characteristics, firmware_revision, model;
+ u32 firmware_revision, model;
unsigned workarounds;
int i;
management_agent_addr = 0;
- unit_characteristics = 0;
firmware_revision = SBP2_ROM_VALUE_MISSING;
model = ud->flags & UNIT_DIRECTORY_MODEL_ID ?
ud->model_id : SBP2_ROM_VALUE_MISSING;
@@ -1373,17 +1372,15 @@ static void sbp2_parse_unit_directory(struct sbp2_lu *lu,
lu->lun = ORB_SET_LUN(kv->value.immediate);
break;
- case SBP2_UNIT_CHARACTERISTICS_KEY:
- /* FIXME: This is ignored so far.
- * See SBP-2 clause 7.4.8. */
- unit_characteristics = kv->value.immediate;
- break;
case SBP2_FIRMWARE_REVISION_KEY:
firmware_revision = kv->value.immediate;
break;
default:
+ /* FIXME: Check for SBP2_UNIT_CHARACTERISTICS_KEY
+ * mgt_ORB_timeout and ORB_size, SBP-2 clause 7.4.8. */
+
/* FIXME: Check for SBP2_DEVICE_TYPE_AND_LUN_KEY.
* Its "ordered" bit has consequences for command ORB
* list handling. See SBP-2 clauses 4.6, 7.4.11, 10.2 */