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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-18 21:04:51 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-18 21:04:51 +0300
commitd5acba26bfa097a618be425522b1ec4269d3edaf (patch)
tree7abb08032d4b79b34eb1386aa007a811e1964839 /drivers/char
parent2475c515d4031c494ff452508a8bf8c281ec6e56 (diff)
parent128f38041035001276e964cda1cf951f218d965d (diff)
downloadlinux-d5acba26bfa097a618be425522b1ec4269d3edaf.tar.xz
Merge tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the bit set of char/misc drivers for 4.19-rc1 There is a lot here, much more than normal, seems like everyone is writing new driver subsystems these days... Anyway, major things here are: - new FSI driver subsystem, yet-another-powerpc low-level hardware bus - gnss, finally an in-kernel GPS subsystem to try to tame all of the crazy out-of-tree drivers that have been floating around for years, combined with some really hacky userspace implementations. This is only for GNSS receivers, but you have to start somewhere, and this is great to see. Other than that, there are new slimbus drivers, new coresight drivers, new fpga drivers, and loads of DT bindings for all of these and existing drivers. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits) android: binder: Rate-limit debug and userspace triggered err msgs fsi: sbefifo: Bump max command length fsi: scom: Fix NULL dereference misc: mic: SCIF Fix scif_get_new_port() error handling misc: cxl: changed asterisk position genwqe: card_base: Use true and false for boolean values misc: eeprom: assignment outside the if statement uio: potential double frees if __uio_register_device() fails eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency misc: ti-st: Fix memory leak in the error path of probe() android: binder: Show extra_buffers_size in trace firmware: vpd: Fix section enabled flag on vpd_section_destroy platform: goldfish: Retire pdev_bus goldfish: Use dedicated macros instead of manual bit shifting goldfish: Add missing includes to goldfish.h mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux dt-bindings: mux: add adi,adgs1408 Drivers: hv: vmbus: Cleanup synic memory free path Drivers: hv: vmbus: Remove use of slow_virt_to_phys() Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind() ...
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/hpet.c2
-rw-r--r--drivers/char/hw_random/atmel-rng.c1
-rw-r--r--drivers/char/hw_random/exynos-trng.c1
-rw-r--r--drivers/char/hw_random/imx-rngc.c1
-rw-r--r--drivers/char/hw_random/powernv-rng.c1
-rw-r--r--drivers/char/mem.c1
-rw-r--r--drivers/char/pcmcia/cm4000_cs.c4
-rw-r--r--drivers/char/virtio_console.c60
8 files changed, 27 insertions, 44 deletions
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index be426eb2a353..4a22b4b41aef 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -579,7 +579,6 @@ hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
struct hpet_info *info)
{
struct hpet_timer __iomem *timer;
- struct hpet __iomem *hpet;
struct hpets *hpetp;
int err;
unsigned long v;
@@ -591,7 +590,6 @@ hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
case HPET_DPI:
case HPET_IRQFREQ:
timer = devp->hd_timer;
- hpet = devp->hd_hpet;
hpetp = devp->hd_hpets;
break;
case HPET_IE_ON:
diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c
index 661c82cde0f2..433426242b87 100644
--- a/drivers/char/hw_random/atmel-rng.c
+++ b/drivers/char/hw_random/atmel-rng.c
@@ -8,6 +8,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/clk.h>
diff --git a/drivers/char/hw_random/exynos-trng.c b/drivers/char/hw_random/exynos-trng.c
index 1947aed7c044..94235761955c 100644
--- a/drivers/char/hw_random/exynos-trng.c
+++ b/drivers/char/hw_random/exynos-trng.c
@@ -19,6 +19,7 @@
#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
index 250123bc4905..14730be54edf 100644
--- a/drivers/char/hw_random/imx-rngc.c
+++ b/drivers/char/hw_random/imx-rngc.c
@@ -13,6 +13,7 @@
*/
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/clk.h>
diff --git a/drivers/char/hw_random/powernv-rng.c b/drivers/char/hw_random/powernv-rng.c
index 263a5bb8e605..791182aa8e04 100644
--- a/drivers/char/hw_random/powernv-rng.c
+++ b/drivers/char/hw_random/powernv-rng.c
@@ -10,6 +10,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/random.h>
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index df66a9dd0aae..7b4e4de778e4 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -766,6 +766,7 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig)
switch (orig) {
case SEEK_CUR:
offset += file->f_pos;
+ /* fall through */
case SEEK_SET:
/* to avoid userland mistaking f_pos=-9 as -EBADF=-9 */
if ((unsigned long long)offset >= -MAX_ERRNO) {
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index 370e0a64ead1..a219964cb770 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -1748,8 +1748,6 @@ static int cm4000_config_check(struct pcmcia_device *p_dev, void *priv_data)
static int cm4000_config(struct pcmcia_device * link, int devno)
{
- struct cm4000_dev *dev;
-
link->config_flags |= CONF_AUTO_SET_IO;
/* read the config-tuples */
@@ -1759,8 +1757,6 @@ static int cm4000_config(struct pcmcia_device * link, int devno)
if (pcmcia_enable_device(link))
goto cs_release;
- dev = link->priv;
-
return 0;
cs_release:
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 17084cfcf53e..5b5b5d72eab7 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1309,51 +1309,35 @@ static const struct attribute_group port_attribute_group = {
.attrs = port_sysfs_entries,
};
-static ssize_t debugfs_read(struct file *filp, char __user *ubuf,
- size_t count, loff_t *offp)
+static int debugfs_show(struct seq_file *s, void *data)
{
- struct port *port;
- char *buf;
- ssize_t ret, out_offset, out_count;
+ struct port *port = s->private;
+
+ seq_printf(s, "name: %s\n", port->name ? port->name : "");
+ seq_printf(s, "guest_connected: %d\n", port->guest_connected);
+ seq_printf(s, "host_connected: %d\n", port->host_connected);
+ seq_printf(s, "outvq_full: %d\n", port->outvq_full);
+ seq_printf(s, "bytes_sent: %lu\n", port->stats.bytes_sent);
+ seq_printf(s, "bytes_received: %lu\n", port->stats.bytes_received);
+ seq_printf(s, "bytes_discarded: %lu\n", port->stats.bytes_discarded);
+ seq_printf(s, "is_console: %s\n",
+ is_console_port(port) ? "yes" : "no");
+ seq_printf(s, "console_vtermno: %u\n", port->cons.vtermno);
- out_count = 1024;
- buf = kmalloc(out_count, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
+ return 0;
+}
- port = filp->private_data;
- out_offset = 0;
- out_offset += snprintf(buf + out_offset, out_count,
- "name: %s\n", port->name ? port->name : "");
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "guest_connected: %d\n", port->guest_connected);
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "host_connected: %d\n", port->host_connected);
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "outvq_full: %d\n", port->outvq_full);
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "bytes_sent: %lu\n", port->stats.bytes_sent);
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "bytes_received: %lu\n",
- port->stats.bytes_received);
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "bytes_discarded: %lu\n",
- port->stats.bytes_discarded);
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "is_console: %s\n",
- is_console_port(port) ? "yes" : "no");
- out_offset += snprintf(buf + out_offset, out_count - out_offset,
- "console_vtermno: %u\n", port->cons.vtermno);
-
- ret = simple_read_from_buffer(ubuf, count, offp, buf, out_offset);
- kfree(buf);
- return ret;
+static int debugfs_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, debugfs_show, inode->i_private);
}
static const struct file_operations port_debugfs_ops = {
.owner = THIS_MODULE,
- .open = simple_open,
- .read = debugfs_read,
+ .open = debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
};
static void set_console_size(struct port *port, u16 rows, u16 cols)