The patch titled
w1: recode w1_slave_found logic
has been added to the -mm tree. Its filename is
w1-recode-w1_slave_found-logic.patch
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------------------------------------------------------
Subject: w1: recode w1_slave_found logic
From: David Fries <david@xxxxxxxxx>
Simplified the logic in w1_slave_found by using the new
w1_attach_slave_device function to find a slave and mark it as active or
add the device if the crc checks.
Signed-off-by: David Fries <david@xxxxxxxxx>
Signed-off-by: Evgeniy Polyakov <johnpol@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/w1/w1.c | 26 ++++++--------------------
1 file changed, 6 insertions(+), 20 deletions(-)
diff -puN drivers/w1/w1.c~w1-recode-w1_slave_found-logic drivers/w1/w1.c
--- a/drivers/w1/w1.c~w1-recode-w1_slave_found-logic
+++ a/drivers/w1/w1.c
@@ -836,9 +836,7 @@ void w1_reconnect_slaves(struct w1_famil
static void w1_slave_found(struct w1_master *dev, u64 rn)
{
- int slave_count;
struct w1_slave *sl;
- struct list_head *ent;
struct w1_reg_num *tmp;
u64 rn_le = cpu_to_le64(rn);
@@ -846,24 +844,12 @@ static void w1_slave_found(struct w1_mas
tmp = (struct w1_reg_num *) &rn;
- slave_count = 0;
- list_for_each(ent, &dev->slist) {
-
- sl = list_entry(ent, struct w1_slave, w1_slave_entry);
-
- if (sl->reg_num.family == tmp->family &&
- sl->reg_num.id == tmp->id &&
- sl->reg_num.crc == tmp->crc) {
- set_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
- break;
- }
-
- slave_count++;
- }
-
- if (slave_count == dev->slave_count &&
- rn && ((rn >> 56) & 0xff) == w1_calc_crc8((u8 *)&rn_le, 7)) {
- w1_attach_slave_device(dev, tmp);
+ sl = w1_slave_search_device(dev, tmp);
+ if (sl) {
+ set_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
+ } else {
+ if (rn && tmp->crc == w1_calc_crc8((u8 *)&rn_le, 7))
+ w1_attach_slave_device(dev, tmp);
}
atomic_dec(&dev->refcnt);
_
Patches currently in -mm which might be from david@xxxxxxxxx are
w1-fix-deadlocks-and-remove-w1_control_thread.patch
w1-abort-search-early-on-on-exit.patch
w1-dont-delay-search-start.patch
w1-w1_process-block-or-sleep.patch
w1-feature-enable-hardware-strong-pullup.patch
w1-feature-w1_thermc-use-strong-pullup-and-documentation.patch
w1-be-able-to-manually-add-and-remove-slaves.patch
w1-recode-w1_slave_found-logic.patch
w1-new-module-parameter-search_count.patch
w1-document-add-remove-search_count-and-pullup.patch
w1-w1_slave_read_id-read-bug-use-device_attribute.patch
w1-w1_therm-fix-user-buffer-overflow-and-cat.patch
w1-w1_family-remove-unused-variable-need_exit.patch
w1-w1_therm-consistent-mutex-access-code-cleanup.patch
w1-w1_intc-use-first-available-master-number.patch
w1-w1c-s-printk-dev_dbg.patch
w1-w1_ioc-reset-comments-and-msleep.patch
w1-ds1wmc-msleep-for-reset.patch
w1-ds2490c-correct-print-message.patch
w1-ds2490c-add-support-for-strong-pullup.patch
w1-ds2490c-ds_write_bit-grouping-error-disable-readback.patch
w1-ds2490c-disable-bit-read-and-write.patch
w1-ds2490c-simplify-and-fix-ds_touch_bit.patch
w1-ds2490c-ds_dump_status-rework.patch
w1-ds2490c-ds_reset-remove-ds_wait_status.patch
w1-ds2490c-reset-ds2490-in-init.patch
w1-ds2490c-magic-number-work.patch
w1-ds2490c-ds_write_block-remove-extra-ds_wait_status.patch
w1-documentation-w1-masters-ds2490-update.patch
w1-ds2490c-optimize-ds_set_pullup.patch
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