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openwrt/target/linux/generic/patches-3.3/051-rng_git_backport-remove...

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--- a/arch/arm/mach-omap1/board-palmz71.c
+++ b/arch/arm/mach-omap1/board-palmz71.c
@@ -291,8 +291,7 @@ palmz71_gpio_setup(int early)
}
gpio_direction_input(PALMZ71_USBDETECT_GPIO);
if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
- palmz71_powercable, IRQF_SAMPLE_RANDOM,
- "palmz71-cable", 0))
+ palmz71_powercable, 0, "palmz71-cable", 0))
printk(KERN_ERR
"IRQ request for power cable failed!\n");
palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), 0);
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -455,7 +455,7 @@ static int lubbock_mci_init(struct devic
init_timer(&mmc_timer);
mmc_timer.data = (unsigned long) data;
return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
- IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
+ 0, "lubbock-sd-detect", data);
}
static int lubbock_mci_get_ro(struct device *dev)
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -617,9 +617,8 @@ static struct platform_device bq24022 =
static int magician_mci_init(struct device *dev,
irq_handler_t detect_irq, void *data)
{
- return request_irq(IRQ_MAGICIAN_SD, detect_irq,
- IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
- "mmc card detect", data);
+ return request_irq(IRQ_MAGICIAN_SD, detect_irq, IRQF_DISABLED,
+ "mmc card detect", data);
}
static void magician_mci_exit(struct device *dev, void *data)
--- a/arch/arm/mach-pxa/trizeps4.c
+++ b/arch/arm/mach-pxa/trizeps4.c
@@ -332,8 +332,8 @@ static int trizeps4_mci_init(struct devi
int err;
err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
- IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM,
- "MMC card detect", data);
+ IRQF_DISABLED | IRQF_TRIGGER_RISING,
+ "MMC card detect", data);
if (err) {
printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
"MMC card detect IRQ\n");
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -23,7 +23,6 @@
#include <linux/ioport.h>
#include <linux/kernel_stat.h>
#include <linux/ptrace.h>
-#include <linux/random.h> /* for rand_initialize_irq() */
#include <linux/signal.h>
#include <linux/smp.h>
#include <linux/threads.h>
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -1250,14 +1250,12 @@ int ldc_bind(struct ldc_channel *lp, con
snprintf(lp->rx_irq_name, LDC_IRQ_NAME_MAX, "%s RX", name);
snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name);
- err = request_irq(lp->cfg.rx_irq, ldc_rx,
- IRQF_SAMPLE_RANDOM | IRQF_DISABLED,
+ err = request_irq(lp->cfg.rx_irq, ldc_rx, IRQF_DISABLED,
lp->rx_irq_name, lp);
if (err)
return err;
- err = request_irq(lp->cfg.tx_irq, ldc_tx,
- IRQF_SAMPLE_RANDOM | IRQF_DISABLED,
+ err = request_irq(lp->cfg.tx_irq, ldc_tx, IRQF_DISABLED,
lp->tx_irq_name, lp);
if (err) {
free_irq(lp->cfg.rx_irq, lp);
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -371,7 +371,7 @@ static irqreturn_t line_write_interrupt(
int line_setup_irq(int fd, int input, int output, struct line *line, void *data)
{
const struct line_driver *driver = line->driver;
- int err = 0, flags = IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM;
+ int err = 0, flags = IRQF_DISABLED | IRQF_SHARED;
if (input)
err = um_request_irq(driver->read_irq, fd, IRQ_READ,
@@ -807,7 +807,7 @@ void register_winch_irq(int fd, int tty_
.stack = stack });
if (um_request_irq(WINCH_IRQ, fd, IRQ_READ, winch_interrupt,
- IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+ IRQF_DISABLED | IRQF_SHARED,
"winch", winch) < 0) {
printk(KERN_ERR "register_winch_irq - failed to register "
"IRQ\n");
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -773,7 +773,7 @@ static int __init mconsole_init(void)
register_reboot_notifier(&reboot_notifier);
err = um_request_irq(MCONSOLE_IRQ, sock, IRQ_READ, mconsole_interrupt,
- IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+ IRQF_DISABLED | IRQF_SHARED,
"mconsole", (void *)sock);
if (err) {
printk(KERN_ERR "Failed to get IRQ for management console\n");
--- a/arch/um/drivers/port_kern.c
+++ b/arch/um/drivers/port_kern.c
@@ -100,7 +100,7 @@ static int port_accept(struct port_list
.port = port });
if (um_request_irq(TELNETD_IRQ, socket[0], IRQ_READ, pipe_interrupt,
- IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+ IRQF_DISABLED | IRQF_SHARED,
"telnetd", conn)) {
printk(KERN_ERR "port_accept : failed to get IRQ for "
"telnetd\n");
@@ -184,7 +184,7 @@ void *port_data(int port_num)
}
if (um_request_irq(ACCEPT_IRQ, fd, IRQ_READ, port_interrupt,
- IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+ IRQF_DISABLED | IRQF_SHARED,
"port", port)) {
printk(KERN_ERR "Failed to get IRQ for port %d\n", port_num);
goto out_close;
--- a/arch/um/drivers/random.c
+++ b/arch/um/drivers/random.c
@@ -131,8 +131,7 @@ static int __init rng_init (void)
random_fd = err;
err = um_request_irq(RANDOM_IRQ, random_fd, IRQ_READ, random_interrupt,
- IRQF_DISABLED | IRQF_SAMPLE_RANDOM, "random",
- NULL);
+ IRQF_DISABLED, "random", NULL);
if (err)
goto err_out_cleanup_hw;
--- a/arch/um/drivers/xterm_kern.c
+++ b/arch/um/drivers/xterm_kern.c
@@ -50,8 +50,7 @@ int xterm_fd(int socket, int *pid_out)
init_completion(&data->ready);
err = um_request_irq(XTERM_IRQ, socket, IRQ_READ, xterm_interrupt,
- IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM,
- "xterm", data);
+ IRQF_DISABLED | IRQF_SHARED, "xterm", data);
if (err) {
printk(KERN_ERR "xterm_fd : failed to get IRQ for xterm, "
"err = %d\n", err);
--- a/arch/um/kernel/sigio.c
+++ b/arch/um/kernel/sigio.c
@@ -25,8 +25,7 @@ int write_sigio_irq(int fd)
int err;
err = um_request_irq(SIGIO_WRITE_IRQ, fd, IRQ_READ, sigio_interrupt,
- IRQF_DISABLED|IRQF_SAMPLE_RANDOM, "write sigio",
- NULL);
+ IRQF_DISABLED, "write sigio", NULL);
if (err) {
printk(KERN_ERR "write_sigio_irq : um_request_irq failed, "
"err = %d\n", err);
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -71,20 +71,6 @@ Who: Luis R. Rodriguez <lrodriguez@ather
---------------------------
-What: IRQF_SAMPLE_RANDOM
-Check: IRQF_SAMPLE_RANDOM
-When: July 2009
-
-Why: Many of IRQF_SAMPLE_RANDOM users are technically bogus as entropy
- sources in the kernel's current entropy model. To resolve this, every
- input point to the kernel's entropy pool needs to better document the
- type of entropy source it actually is. This will be replaced with
- additional add_*_randomness functions in drivers/char/random.c
-
-Who: Robin Getz <rgetz@blackfin.uclinux.org> & Matt Mackall <mpm@selenic.com>
-
----------------------------
-
What: The ieee80211_regdom module parameter
When: March 2010 / desktop catchup
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -852,9 +852,8 @@ static int setup_blkring(struct xenbus_d
if (err)
goto fail;
- err = bind_evtchn_to_irqhandler(info->evtchn,
- blkif_interrupt,
- IRQF_SAMPLE_RANDOM, "blkif", info);
+ err = bind_evtchn_to_irqhandler(info->evtchn, blkif_interrupt, 0,
+ "blkif", info);
if (err <= 0) {
xenbus_dev_fatal(dev, err,
"bind_evtchn_to_irqhandler failed");
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -633,43 +633,6 @@ struct timer_rand_state {
unsigned dont_count_entropy:1;
};
-#ifndef CONFIG_GENERIC_HARDIRQS
-
-static struct timer_rand_state *irq_timer_state[NR_IRQS];
-
-static struct timer_rand_state *get_timer_rand_state(unsigned int irq)
-{
- return irq_timer_state[irq];
-}
-
-static void set_timer_rand_state(unsigned int irq,
- struct timer_rand_state *state)
-{
- irq_timer_state[irq] = state;
-}
-
-#else
-
-static struct timer_rand_state *get_timer_rand_state(unsigned int irq)
-{
- struct irq_desc *desc;
-
- desc = irq_to_desc(irq);
-
- return desc->timer_rand_state;
-}
-
-static void set_timer_rand_state(unsigned int irq,
- struct timer_rand_state *state)
-{
- struct irq_desc *desc;
-
- desc = irq_to_desc(irq);
-
- desc->timer_rand_state = state;
-}
-#endif
-
/*
* Add device- or boot-specific data to the input and nonblocking
* pools to help initialize them to unique values.
@@ -1131,24 +1094,6 @@ static int rand_initialize(void)
}
module_init(rand_initialize);
-void rand_initialize_irq(int irq)
-{
- struct timer_rand_state *state;
-
- state = get_timer_rand_state(irq);
-
- if (state)
- return;
-
- /*
- * If kzalloc returns null, we just won't use that entropy
- * source.
- */
- state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
- if (state)
- set_timer_rand_state(irq, state);
-}
-
#ifdef CONFIG_BLOCK
void rand_initialize_disk(struct gendisk *disk)
{
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -1607,8 +1607,7 @@ static int spu_map_ino(struct platform_d
sprintf(p->irq_name, "%s-%d", irq_name, index);
- return request_irq(p->irq, handler, IRQF_SAMPLE_RANDOM,
- p->irq_name, p);
+ return request_irq(p->irq, handler, 0, p->irq_name, p);
}
static struct kmem_cache *queue_cache[2];
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -545,8 +545,7 @@ static int vmbus_bus_init(int irq)
if (ret)
goto err_cleanup;
- ret = request_irq(irq, vmbus_isr, IRQF_SAMPLE_RANDOM,
- driver_name, hv_acpi_dev);
+ ret = request_irq(irq, vmbus_isr, 0, driver_name, hv_acpi_dev);
if (ret != 0) {
pr_err("Unable to request IRQ %d\n",
--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -306,8 +306,7 @@ static int __devinit pmcmsptwi_probe(str
pmcmsptwi_data.irq = platform_get_irq(pldev, 0);
if (pmcmsptwi_data.irq) {
rc = request_irq(pmcmsptwi_data.irq, &pmcmsptwi_interrupt,
- IRQF_SHARED | IRQF_SAMPLE_RANDOM,
- pldev->name, &pmcmsptwi_data);
+ IRQF_SHARED, pldev->name, &pmcmsptwi_data);
if (rc == 0) {
/*
* Enable 'DONE' interrupt only.
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -879,7 +879,7 @@ static int __init hp_sdc_init(void)
#endif
errstr = "IRQ not available for";
- if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED|IRQF_SAMPLE_RANDOM,
+ if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED,
"HP SDC", &hp_sdc))
goto err1;
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -937,9 +937,6 @@ static int __devinit ab3100_probe(struct
err = request_threaded_irq(client->irq, NULL, ab3100_irq_handler,
IRQF_ONESHOT, "ab3100-core", ab3100);
- /* This real unpredictable IRQ is of course sampled for entropy */
- rand_initialize_irq(client->irq);
-
if (err)
goto exit_no_irq;
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@ -563,8 +563,7 @@ static int tps65010_probe(struct i2c_cli
*/
if (client->irq > 0) {
status = request_irq(client->irq, tps65010_irq,
- IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_FALLING,
- DRIVER_NAME, tps);
+ IRQF_TRIGGER_FALLING, DRIVER_NAME, tps);
if (status < 0) {
dev_dbg(&client->dev, "can't get IRQ %d, err %d\n",
client->irq, status);
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -9415,7 +9415,7 @@ static int tg3_test_interrupt(struct tg3
}
err = request_irq(tnapi->irq_vec, tg3_test_isr,
- IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, tnapi);
+ IRQF_SHARED, dev->name, tnapi);
if (err)
return err;
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -24,11 +24,7 @@
static inline unsigned int get_irq_flags(struct resource *res)
{
- unsigned int flags = IRQF_SAMPLE_RANDOM | IRQF_SHARED;
-
- flags |= res->flags & IRQF_TRIGGER_MASK;
-
- return flags;
+ return IRQF_SHARED | (res->flags & IRQF_TRIGGER_MASK);
}
static struct device *dev;
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -216,8 +216,7 @@ static int ulite_startup(struct uart_por
{
int ret;
- ret = request_irq(port->irq, ulite_isr,
- IRQF_SHARED | IRQF_SAMPLE_RANDOM, "uartlite", port);
+ ret = request_irq(port->irq, ulite_isr, IRQF_SHARED, "uartlite", port);
if (ret)
return ret;
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -1839,7 +1839,7 @@ static int goku_probe(struct pci_dev *pd
/* init to known state, then setup irqs */
udc_reset(dev);
udc_reinit (dev);
- if (request_irq(pdev->irq, goku_irq, IRQF_SHARED/*|IRQF_SAMPLE_RANDOM*/,
+ if (request_irq(pdev->irq, goku_irq, IRQF_SHARED,
driver_name, dev) != 0) {
DBG(dev, "request interrupt %d failed\n", pdev->irq);
retval = -EBUSY;
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -2943,7 +2943,7 @@ known:
/* USB general purpose IRQ: ep0, state changes, dma, etc */
status = request_irq(pdev->resource[1].start, omap_udc_irq,
- IRQF_SAMPLE_RANDOM, driver_name, udc);
+ 0, driver_name, udc);
if (status != 0) {
ERR("can't get irq %d, err %d\n",
(int) pdev->resource[1].start, status);
@@ -2952,7 +2952,7 @@ known:
/* USB "non-iso" IRQ (PIO for all but ep0) */
status = request_irq(pdev->resource[2].start, omap_udc_pio_irq,
- IRQF_SAMPLE_RANDOM, "omap_udc pio", udc);
+ 0, "omap_udc pio", udc);
if (status != 0) {
ERR("can't get irq %d, err %d\n",
(int) pdev->resource[2].start, status);
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -2202,19 +2202,15 @@ static int __init pxa25x_udc_probe(struc
#ifdef CONFIG_ARCH_LUBBOCK
if (machine_is_lubbock()) {
- retval = request_irq(LUBBOCK_USB_DISC_IRQ,
- lubbock_vbus_irq,
- IRQF_SAMPLE_RANDOM,
- driver_name, dev);
+ retval = request_irq(LUBBOCK_USB_DISC_IRQ, lubbock_vbus_irq,
+ 0, driver_name, dev);
if (retval != 0) {
pr_err("%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_DISC_IRQ, retval);
goto err_irq_lub;
}
- retval = request_irq(LUBBOCK_USB_IRQ,
- lubbock_vbus_irq,
- IRQF_SAMPLE_RANDOM,
- driver_name, dev);
+ retval = request_irq(LUBBOCK_USB_IRQ, lubbock_vbus_irq,
+ 0, driver_name, dev);
if (retval != 0) {
pr_err("%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_IRQ, retval);
--- a/drivers/usb/otg/gpio_vbus.c
+++ b/drivers/usb/otg/gpio_vbus.c
@@ -51,8 +51,7 @@ struct gpio_vbus_data {
* edges might be workable.
*/
#define VBUS_IRQ_FLAGS \
- ( IRQF_SAMPLE_RANDOM | IRQF_SHARED \
- | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING )
+ ( IRQF_SHARED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING )
/* interface to regulator framework */
@@ -253,7 +252,7 @@ static int __init gpio_vbus_probe(struct
if (res) {
irq = res->start;
res->flags &= IRQF_TRIGGER_MASK;
- res->flags |= IRQF_SAMPLE_RANDOM | IRQF_SHARED;
+ res->flags |= IRQF_SHARED;
} else
irq = gpio_to_irq(gpio);
--- a/drivers/usb/otg/isp1301_omap.c
+++ b/drivers/usb/otg/isp1301_omap.c
@@ -1567,7 +1567,6 @@ isp1301_probe(struct i2c_client *i2c, co
isp->irq_type = IRQF_TRIGGER_FALLING;
}
- isp->irq_type |= IRQF_SAMPLE_RANDOM;
status = request_irq(i2c->irq, isp1301_irq,
isp->irq_type, DRIVER_NAME, isp);
if (status < 0) {
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -44,7 +44,6 @@
*
* IRQF_DISABLED - keep irqs disabled when calling the action handler.
* DEPRECATED. This flag is a NOOP and scheduled to be removed
- * IRQF_SAMPLE_RANDOM - irq is used to feed the random generator
* IRQF_SHARED - allow sharing the irq among several devices
* IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur
* IRQF_TIMER - Flag to mark this interrupt as timer interrupt
@@ -63,7 +62,6 @@
* resume time.
*/
#define IRQF_DISABLED 0x00000020
-#define IRQF_SAMPLE_RANDOM 0x00000040
#define IRQF_SHARED 0x00000080
#define IRQF_PROBE_SHARED 0x00000100
#define __IRQF_TIMER 0x00000200
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -39,7 +39,6 @@ struct module;
*/
struct irq_desc {
struct irq_data irq_data;
- struct timer_rand_state *timer_rand_state;
unsigned int __percpu *kstat_irqs;
irq_flow_handler_t handle_irq;
#ifdef CONFIG_IRQ_PREFLOW_FASTEOI
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -48,8 +48,6 @@ struct rnd_state {
#ifdef __KERNEL__
-extern void rand_initialize_irq(int irq);
-
extern void add_device_randomness(const void *, unsigned int);
extern void add_input_randomness(unsigned int type, unsigned int code,
unsigned int value);
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -891,22 +891,6 @@ __setup_irq(unsigned int irq, struct irq
return -ENOSYS;
if (!try_module_get(desc->owner))
return -ENODEV;
- /*
- * Some drivers like serial.c use request_irq() heavily,
- * so we have to be careful not to interfere with a
- * running system.
- */
- if (new->flags & IRQF_SAMPLE_RANDOM) {
- /*
- * This function might sleep, we want to call it first,
- * outside of the atomic block.
- * Yes, this might clear the entropy pool if the wrong
- * driver is attempted to be loaded, without actually
- * installing a new handler, but is this really a problem,
- * only the sysadmin is able to do this.
- */
- rand_initialize_irq(irq);
- }
/*
* Check whether the interrupt nests into another interrupt
@@ -1342,7 +1326,6 @@ EXPORT_SYMBOL(free_irq);
* Flags:
*
* IRQF_SHARED Interrupt is shared
- * IRQF_SAMPLE_RANDOM The interrupt can be used for entropy
* IRQF_TRIGGER_* Specify active edge(s) or level
*
*/
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