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authorDavid Fries <David@Fries.net>2011-05-26 16:26:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-26 17:12:38 -0700
commit963bb101010169b9bb32b5c21af785e2f9abdaf3 (patch)
tree8e5d4cfae208bf5ac1044994291e7cde9570362a /drivers/w1
parent26a6afb917a8e3eb603358be1238a69e8a16d0ee (diff)
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w1: have netlink search update kernel list
Reorganize so the netlink connector one wire search command will update the kernel list of detected slave devices. Otherwise, a newly detected device is unusable because unless it's in the kernel list of known devices any commands will result in ENODEV status. Signed-off-by: David Fries <David@Fries.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/w1')
-rw-r--r--drivers/w1/w1.c12
-rw-r--r--drivers/w1/w1.h4
-rw-r--r--drivers/w1/w1_netlink.c5
3 files changed, 16 insertions, 5 deletions
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index b7b5014..10606c8 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -827,7 +827,7 @@ void w1_reconnect_slaves(struct w1_family *f, int attach)
mutex_unlock(&w1_mlock);
}
-static void w1_slave_found(struct w1_master *dev, u64 rn)
+void w1_slave_found(struct w1_master *dev, u64 rn)
{
struct w1_slave *sl;
struct w1_reg_num *tmp;
@@ -933,14 +933,15 @@ void w1_search(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb
}
}
-void w1_search_process(struct w1_master *dev, u8 search_type)
+void w1_search_process_cb(struct w1_master *dev, u8 search_type,
+ w1_slave_found_callback cb)
{
struct w1_slave *sl, *sln;
list_for_each_entry(sl, &dev->slist, w1_slave_entry)
clear_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
- w1_search_devices(dev, search_type, w1_slave_found);
+ w1_search_devices(dev, search_type, cb);
list_for_each_entry_safe(sl, sln, &dev->slist, w1_slave_entry) {
if (!test_bit(W1_SLAVE_ACTIVE, (unsigned long *)&sl->flags) && !--sl->ttl)
@@ -953,6 +954,11 @@ void w1_search_process(struct w1_master *dev, u8 search_type)
dev->search_count--;
}
+static void w1_search_process(struct w1_master *dev, u8 search_type)
+{
+ w1_search_process_cb(dev, search_type, w1_slave_found);
+}
+
int w1_process(void *data)
{
struct w1_master *dev = (struct w1_master *) data;
diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h
index f804eba..1ce23fc 100644
--- a/drivers/w1/w1.h
+++ b/drivers/w1/w1.h
@@ -194,7 +194,9 @@ void w1_destroy_master_attributes(struct w1_master *master);
void w1_search(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb);
void w1_search_devices(struct w1_master *dev, u8 search_type, w1_slave_found_callback cb);
struct w1_slave *w1_search_slave(struct w1_reg_num *id);
-void w1_search_process(struct w1_master *dev, u8 search_type);
+void w1_slave_found(struct w1_master *dev, u64 rn);
+void w1_search_process_cb(struct w1_master *dev, u8 search_type,
+ w1_slave_found_callback cb);
struct w1_master *w1_search_master_id(u32 id);
/* Disconnect and reconnect devices in the given family. Used for finding
diff --git a/drivers/w1/w1_netlink.c b/drivers/w1/w1_netlink.c
index 7e667bc..55aabd9 100644
--- a/drivers/w1/w1_netlink.c
+++ b/drivers/w1/w1_netlink.c
@@ -55,6 +55,9 @@ static void w1_send_slave(struct w1_master *dev, u64 rn)
struct w1_netlink_cmd *cmd = (struct w1_netlink_cmd *)(hdr + 1);
int avail;
+ /* update kernel slave list */
+ w1_slave_found(dev, rn);
+
avail = dev->priv_size - cmd->len;
if (avail > 8) {
@@ -85,7 +88,7 @@ static int w1_process_search_command(struct w1_master *dev, struct cn_msg *msg,
dev->priv = msg;
dev->priv_size = avail;
- w1_search_devices(dev, search_type, w1_send_slave);
+ w1_search_process_cb(dev, search_type, w1_send_slave);
msg->ack = 0;
cn_netlink_send(msg, 0, GFP_KERNEL);