kernel: update 4.1 to 4.1.4
Changelog: * https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.4 Signed-off-by: Daniel Golle <daniel@makrotopia.org> [jogo: fix brcm2708 patches, refresh target patches] Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 46560
This commit is contained in:
@@ -894,7 +894,7 @@ dwc_otg: Fix crash when fiq_enable=0
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}
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--- a/drivers/usb/core/hub.c
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+++ b/drivers/usb/core/hub.c
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@@ -4922,7 +4922,7 @@ static void port_event(struct usb_hub *h
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@@ -4906,7 +4906,7 @@ static void port_event(struct usb_hub *h
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if (portchange & USB_PORT_STAT_C_OVERCURRENT) {
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u16 status = 0, unused;
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@@ -13,7 +13,7 @@ Subject: [PATCH 066/121] Add blk_pos parameter to mmc multi_io_quirk callback
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--- a/drivers/mmc/card/block.c
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+++ b/drivers/mmc/card/block.c
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@@ -1413,6 +1413,7 @@ static void mmc_blk_rw_rq_prep(struct mm
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@@ -1415,6 +1415,7 @@ static void mmc_blk_rw_rq_prep(struct mm
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brq->data.blocks = card->host->ops->multi_io_quirk(card,
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(rq_data_dir(req) == READ) ?
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MMC_DATA_READ : MMC_DATA_WRITE,
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@@ -51,41 +51,7 @@ w1_therm: Back-port locking improvements from 4.2-rc1
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+representing the device index in the bus starting at 0.
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--- a/drivers/w1/slaves/w1_therm.c
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+++ b/drivers/w1/slaves/w1_therm.c
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@@ -59,16 +59,32 @@ MODULE_ALIAS("w1-family-" __stringify(W1
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static int w1_strong_pullup = 1;
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module_param_named(strong_pullup, w1_strong_pullup, int, 0);
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+struct w1_therm_family_data {
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+ uint8_t rom[9];
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+ atomic_t refcnt;
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+};
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+
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+/* return the address of the refcnt in the family data */
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+#define THERM_REFCNT(family_data) \
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+ (&((struct w1_therm_family_data*)family_data)->refcnt)
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+
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static int w1_therm_add_slave(struct w1_slave *sl)
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{
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- sl->family_data = kzalloc(9, GFP_KERNEL);
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+ sl->family_data = kzalloc(sizeof(struct w1_therm_family_data),
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+ GFP_KERNEL);
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if (!sl->family_data)
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return -ENOMEM;
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+ atomic_set(THERM_REFCNT(sl->family_data), 1);
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return 0;
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}
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static void w1_therm_remove_slave(struct w1_slave *sl)
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{
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+ int refcnt = atomic_sub_return(1, THERM_REFCNT(sl->family_data));
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+ while(refcnt) {
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+ msleep(1000);
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+ refcnt = atomic_read(THERM_REFCNT(sl->family_data));
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+ }
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kfree(sl->family_data);
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sl->family_data = NULL;
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}
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@@ -76,13 +92,24 @@ static void w1_therm_remove_slave(struct
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@@ -92,13 +92,24 @@ static void w1_therm_remove_slave(struct
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static ssize_t w1_slave_show(struct device *device,
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struct device_attribute *attr, char *buf);
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@@ -110,7 +76,7 @@ w1_therm: Back-port locking improvements from 4.2-rc1
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static struct w1_family_ops w1_therm_fops = {
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.add_slave = w1_therm_add_slave,
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@@ -90,6 +117,12 @@ static struct w1_family_ops w1_therm_fop
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@@ -106,6 +117,12 @@ static struct w1_family_ops w1_therm_fop
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.groups = w1_therm_groups,
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};
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@@ -123,7 +89,7 @@ w1_therm: Back-port locking improvements from 4.2-rc1
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static struct w1_family w1_therm_family_DS18S20 = {
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.fid = W1_THERM_DS18S20,
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.fops = &w1_therm_fops,
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@@ -107,7 +140,7 @@ static struct w1_family w1_therm_family_
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@@ -123,7 +140,7 @@ static struct w1_family w1_therm_family_
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static struct w1_family w1_therm_family_DS28EA00 = {
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.fid = W1_THERM_DS28EA00,
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@@ -132,86 +98,10 @@ w1_therm: Back-port locking improvements from 4.2-rc1
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};
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static struct w1_family w1_therm_family_DS1825 = {
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@@ -194,13 +227,22 @@ static ssize_t w1_slave_show(struct devi
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struct w1_slave *sl = dev_to_w1_slave(device);
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struct w1_master *dev = sl->master;
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u8 rom[9], crc, verdict, external_power;
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- int i, max_trying = 10;
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+ int i, ret, max_trying = 10;
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ssize_t c = PAGE_SIZE;
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+ u8 *family_data = sl->family_data;
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@@ -316,6 +333,89 @@ post_unlock:
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return ret;
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}
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- i = mutex_lock_interruptible(&dev->bus_mutex);
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- if (i != 0)
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- return i;
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+ ret = mutex_lock_interruptible(&dev->bus_mutex);
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+ if (ret != 0)
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+ goto post_unlock;
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+
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+ if(!sl->family_data)
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+ {
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+ ret = -ENODEV;
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+ goto pre_unlock;
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+ }
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+ /* prevent the slave from going away in sleep */
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+ atomic_inc(THERM_REFCNT(family_data));
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memset(rom, 0, sizeof(rom));
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while (max_trying--) {
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@@ -230,17 +272,19 @@ static ssize_t w1_slave_show(struct devi
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mutex_unlock(&dev->bus_mutex);
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sleep_rem = msleep_interruptible(tm);
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- if (sleep_rem != 0)
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- return -EINTR;
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+ if (sleep_rem != 0) {
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+ ret = -EINTR;
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+ goto post_unlock;
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+ }
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- i = mutex_lock_interruptible(&dev->bus_mutex);
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- if (i != 0)
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- return i;
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+ ret = mutex_lock_interruptible(&dev->bus_mutex);
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+ if (ret != 0)
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+ goto post_unlock;
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} else if (!w1_strong_pullup) {
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sleep_rem = msleep_interruptible(tm);
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if (sleep_rem != 0) {
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- mutex_unlock(&dev->bus_mutex);
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- return -EINTR;
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+ ret = -EINTR;
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+ goto pre_unlock;
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}
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}
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@@ -269,19 +313,107 @@ static ssize_t w1_slave_show(struct devi
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c -= snprintf(buf + PAGE_SIZE - c, c, ": crc=%02x %s\n",
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crc, (verdict) ? "YES" : "NO");
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if (verdict)
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- memcpy(sl->family_data, rom, sizeof(rom));
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+ memcpy(family_data, rom, sizeof(rom));
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else
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dev_warn(device, "Read failed CRC check\n");
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for (i = 0; i < 9; ++i)
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c -= snprintf(buf + PAGE_SIZE - c, c, "%02x ",
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- ((u8 *)sl->family_data)[i]);
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+ ((u8 *)family_data)[i]);
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c -= snprintf(buf + PAGE_SIZE - c, c, "t=%d\n",
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w1_convert_temp(rom, sl->family->fid));
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+ ret = PAGE_SIZE - c;
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+
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+pre_unlock:
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mutex_unlock(&dev->bus_mutex);
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+post_unlock:
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+ atomic_dec(THERM_REFCNT(family_data));
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+ return ret;
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+}
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+
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+#define W1_42_CHAIN 0x99
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+#define W1_42_CHAIN_OFF 0x3C
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+#define W1_42_CHAIN_OFF_INV 0xC3
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@@ -289,10 +179,12 @@ w1_therm: Back-port locking improvements from 4.2-rc1
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+ mutex_unlock(&sl->master->bus_mutex);
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+
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+ c -= snprintf(buf + PAGE_SIZE - c, c, "%d\n", seq);
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return PAGE_SIZE - c;
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+ return PAGE_SIZE - c;
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+error:
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+ mutex_unlock(&sl->master->bus_mutex);
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+ return -EIO;
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}
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+}
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+
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static int __init w1_therm_init(void)
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{
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int err, i;
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