* [PATCH] serial: earlycon: Extend earlycon command line option to support 64-bit addresses
@ 2016-09-02 11:20 ` Alexander Sverdlin
0 siblings, 0 replies; 6+ messages in thread
From: Alexander Sverdlin @ 2016-09-02 11:20 UTC (permalink / raw)
To: linux-kernel, linux-serial; +Cc: Jiri Slaby, Greg Kroah-Hartman
earlycon implementation used "unsigned long" internally, but there are systems
(ARM with LPAE) where sizeof(unsigned long) == 4 and uart is mapped beyond 4GiB
address range.
Switch to resource_size_t internally and replace obsoleted simple_strtoul() with
kstrtoull().
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
---
drivers/tty/serial/8250/8250_core.c | 2 +-
drivers/tty/serial/earlycon.c | 7 +++----
drivers/tty/serial/serial_core.c | 12 +++++++++---
include/linux/serial_core.h | 2 +-
4 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 13ad5c3..f64d6cd 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -639,7 +639,7 @@ static int univ8250_console_match(struct console *co, char *name, int idx,
{
char match[] = "uart"; /* 8250-specific earlycon name */
unsigned char iotype;
- unsigned long addr;
+ resource_size_t addr;
int i;
if (strncmp(name, match, 4) != 0)
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 067783f..3940280 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -38,7 +38,7 @@ static struct earlycon_device early_console_dev = {
.con = &early_con,
};
-static void __iomem * __init earlycon_map(unsigned long paddr, size_t size)
+static void __iomem * __init earlycon_map(resource_size_t paddr, size_t size)
{
void __iomem *base;
#ifdef CONFIG_FIX_EARLYCON_MEM
@@ -49,8 +49,7 @@ static void __iomem * __init earlycon_map(unsigned long paddr, size_t size)
base = ioremap(paddr, size);
#endif
if (!base)
- pr_err("%s: Couldn't map 0x%llx\n", __func__,
- (unsigned long long)paddr);
+ pr_err("%s: Couldn't map %pa\n", __func__, &paddr);
return base;
}
@@ -92,7 +91,7 @@ static int __init parse_options(struct earlycon_device *device, char *options)
{
struct uart_port *port = &device->port;
int length;
- unsigned long addr;
+ resource_size_t addr;
if (uart_parse_earlycon(options, &port->iotype, &addr, &options))
return -EINVAL;
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 9fc1533..89f5d6a 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1938,11 +1938,14 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
* console=<name>,0x<addr>,<options>
* is also accepted; the returned @iotype will be UPIO_MEM.
*
- * Returns 0 on success or -EINVAL on failure
+ * Returns 0 on success, -EINVAL or -ERANGE on failure
*/
-int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
+int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
char **options)
{
+ int ret;
+ unsigned long long tmp;
+
if (strncmp(p, "mmio,", 5) == 0) {
*iotype = UPIO_MEM;
p += 5;
@@ -1968,7 +1971,10 @@ int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
return -EINVAL;
}
- *addr = simple_strtoul(p, NULL, 0);
+ ret = kstrtoull(p, 0, &tmp);
+ if (ret)
+ return ret;
+ *addr = tmp;
p = strchr(p, ',');
if (p)
p++;
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 2f44e20..cdba6f1 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -374,7 +374,7 @@ extern int of_setup_earlycon(const struct earlycon_id *match,
struct uart_port *uart_get_console(struct uart_port *ports, int nr,
struct console *c);
-int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
+int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
char **options);
void uart_parse_options(char *options, int *baud, int *parity, int *bits,
int *flow);
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH] serial: earlycon: Extend earlycon command line option to support 64-bit addresses
@ 2016-09-02 11:20 ` Alexander Sverdlin
0 siblings, 0 replies; 6+ messages in thread
From: Alexander Sverdlin @ 2016-09-02 11:20 UTC (permalink / raw)
To: linux-kernel, linux-serial; +Cc: Jiri Slaby, Greg Kroah-Hartman
earlycon implementation used "unsigned long" internally, but there are systems
(ARM with LPAE) where sizeof(unsigned long) == 4 and uart is mapped beyond 4GiB
address range.
Switch to resource_size_t internally and replace obsoleted simple_strtoul() with
kstrtoull().
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
---
drivers/tty/serial/8250/8250_core.c | 2 +-
drivers/tty/serial/earlycon.c | 7 +++----
drivers/tty/serial/serial_core.c | 12 +++++++++---
include/linux/serial_core.h | 2 +-
4 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 13ad5c3..f64d6cd 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -639,7 +639,7 @@ static int univ8250_console_match(struct console *co, char *name, int idx,
{
char match[] = "uart"; /* 8250-specific earlycon name */
unsigned char iotype;
- unsigned long addr;
+ resource_size_t addr;
int i;
if (strncmp(name, match, 4) != 0)
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 067783f..3940280 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -38,7 +38,7 @@ static struct earlycon_device early_console_dev = {
.con = &early_con,
};
-static void __iomem * __init earlycon_map(unsigned long paddr, size_t size)
+static void __iomem * __init earlycon_map(resource_size_t paddr, size_t size)
{
void __iomem *base;
#ifdef CONFIG_FIX_EARLYCON_MEM
@@ -49,8 +49,7 @@ static void __iomem * __init earlycon_map(unsigned long paddr, size_t size)
base = ioremap(paddr, size);
#endif
if (!base)
- pr_err("%s: Couldn't map 0x%llx\n", __func__,
- (unsigned long long)paddr);
+ pr_err("%s: Couldn't map %pa\n", __func__, &paddr);
return base;
}
@@ -92,7 +91,7 @@ static int __init parse_options(struct earlycon_device *device, char *options)
{
struct uart_port *port = &device->port;
int length;
- unsigned long addr;
+ resource_size_t addr;
if (uart_parse_earlycon(options, &port->iotype, &addr, &options))
return -EINVAL;
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 9fc1533..89f5d6a 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1938,11 +1938,14 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
* console=<name>,0x<addr>,<options>
* is also accepted; the returned @iotype will be UPIO_MEM.
*
- * Returns 0 on success or -EINVAL on failure
+ * Returns 0 on success, -EINVAL or -ERANGE on failure
*/
-int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
+int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
char **options)
{
+ int ret;
+ unsigned long long tmp;
+
if (strncmp(p, "mmio,", 5) == 0) {
*iotype = UPIO_MEM;
p += 5;
@@ -1968,7 +1971,10 @@ int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
return -EINVAL;
}
- *addr = simple_strtoul(p, NULL, 0);
+ ret = kstrtoull(p, 0, &tmp);
+ if (ret)
+ return ret;
+ *addr = tmp;
p = strchr(p, ',');
if (p)
p++;
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 2f44e20..cdba6f1 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -374,7 +374,7 @@ extern int of_setup_earlycon(const struct earlycon_id *match,
struct uart_port *uart_get_console(struct uart_port *ports, int nr,
struct console *c);
-int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
+int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
char **options);
void uart_parse_options(char *options, int *baud, int *parity, int *bits,
int *flow);
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: serial: earlycon: Extend earlycon command line option to support 64-bit addresses
2016-09-02 11:20 ` Alexander Sverdlin
(?)
@ 2016-09-11 0:45 ` Guenter Roeck
2016-09-12 11:29 ` Alexander Sverdlin
-1 siblings, 1 reply; 6+ messages in thread
From: Guenter Roeck @ 2016-09-11 0:45 UTC (permalink / raw)
To: Alexander Sverdlin
Cc: linux-kernel, linux-serial, Jiri Slaby, Greg Kroah-Hartman
Hi,
On Fri, Sep 02, 2016 at 01:20:21PM +0200, Alexander Sverdlin wrote:
> earlycon implementation used "unsigned long" internally, but there are systems
> (ARM with LPAE) where sizeof(unsigned long) == 4 and uart is mapped beyond 4GiB
> address range.
>
> Switch to resource_size_t internally and replace obsoleted simple_strtoul() with
> kstrtoull().
>
This patch breaks a qemu emulation using
console=uart,mmio,0x90000000,115200
as command line argument. Problem appears to be the replacement of
simple_strtoul() with kstrtoull(). It looks like simple_strtoul() parsed
the address, but kstrtoull() doesn't. Reverting the kstrtoull() back to
simple_strtoul() fixes the problem for me.
The command line in question is found in arch/openrisc/boot/dts/or1ksim.dts.
There are similar command lines in other dts files, which makes me suspect
that this construct is also used by out-of-kernel command lines. Besides, the
code looks for ',' after the address, which suggests that the above should be
a valid argument.
Is this change to kstrtoull really necessary ? If yes, can you make it work
with existing command lines ?
Thanks,
Guenter
> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
> ---
> drivers/tty/serial/8250/8250_core.c | 2 +-
> drivers/tty/serial/earlycon.c | 7 +++----
> drivers/tty/serial/serial_core.c | 12 +++++++++---
> include/linux/serial_core.h | 2 +-
> 4 files changed, 14 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
> index 13ad5c3..f64d6cd 100644
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -639,7 +639,7 @@ static int univ8250_console_match(struct console *co, char *name, int idx,
> {
> char match[] = "uart"; /* 8250-specific earlycon name */
> unsigned char iotype;
> - unsigned long addr;
> + resource_size_t addr;
> int i;
>
> if (strncmp(name, match, 4) != 0)
> diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
> index 067783f..3940280 100644
> --- a/drivers/tty/serial/earlycon.c
> +++ b/drivers/tty/serial/earlycon.c
> @@ -38,7 +38,7 @@ static struct earlycon_device early_console_dev = {
> .con = &early_con,
> };
>
> -static void __iomem * __init earlycon_map(unsigned long paddr, size_t size)
> +static void __iomem * __init earlycon_map(resource_size_t paddr, size_t size)
> {
> void __iomem *base;
> #ifdef CONFIG_FIX_EARLYCON_MEM
> @@ -49,8 +49,7 @@ static void __iomem * __init earlycon_map(unsigned long paddr, size_t size)
> base = ioremap(paddr, size);
> #endif
> if (!base)
> - pr_err("%s: Couldn't map 0x%llx\n", __func__,
> - (unsigned long long)paddr);
> + pr_err("%s: Couldn't map %pa\n", __func__, &paddr);
>
> return base;
> }
> @@ -92,7 +91,7 @@ static int __init parse_options(struct earlycon_device *device, char *options)
> {
> struct uart_port *port = &device->port;
> int length;
> - unsigned long addr;
> + resource_size_t addr;
>
> if (uart_parse_earlycon(options, &port->iotype, &addr, &options))
> return -EINVAL;
> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
> index 9fc1533..89f5d6a 100644
> --- a/drivers/tty/serial/serial_core.c
> +++ b/drivers/tty/serial/serial_core.c
> @@ -1938,11 +1938,14 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
> * console=<name>,0x<addr>,<options>
> * is also accepted; the returned @iotype will be UPIO_MEM.
> *
> - * Returns 0 on success or -EINVAL on failure
> + * Returns 0 on success, -EINVAL or -ERANGE on failure
> */
> -int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
> +int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
> char **options)
> {
> + int ret;
> + unsigned long long tmp;
> +
> if (strncmp(p, "mmio,", 5) == 0) {
> *iotype = UPIO_MEM;
> p += 5;
> @@ -1968,7 +1971,10 @@ int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
> return -EINVAL;
> }
>
> - *addr = simple_strtoul(p, NULL, 0);
> + ret = kstrtoull(p, 0, &tmp);
> + if (ret)
> + return ret;
> + *addr = tmp;
> p = strchr(p, ',');
> if (p)
> p++;
> diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
> index 2f44e20..cdba6f1 100644
> --- a/include/linux/serial_core.h
> +++ b/include/linux/serial_core.h
> @@ -374,7 +374,7 @@ extern int of_setup_earlycon(const struct earlycon_id *match,
>
> struct uart_port *uart_get_console(struct uart_port *ports, int nr,
> struct console *c);
> -int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
> +int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
> char **options);
> void uart_parse_options(char *options, int *baud, int *parity, int *bits,
> int *flow);
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] serial: core: Fix handling of options after MMIO address
2016-09-11 0:45 ` Guenter Roeck
@ 2016-09-12 11:29 ` Alexander Sverdlin
0 siblings, 0 replies; 6+ messages in thread
From: Alexander Sverdlin @ 2016-09-12 11:29 UTC (permalink / raw)
To: Guenter Roeck, linux-kernel; +Cc: linux-serial, Jiri Slaby, Greg Kroah-Hartman
Guenter Roeck reported a regression caused by commit "serial: earlycon:
Extend earlycon command line option to support 64-bit addresses":
console= and earlycon= options have the following format:
...,<addr>,<options>
Historically used here simple_strtoul() had no problems with comma, but the
new and recommended kstrtoull() requires null-terminated string and returns
-EINVAL in case there are "options" at the end. There is no recommended to
use function currently that will support it, so stick to obsolete
simple_strtoull() variant.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
---
drivers/tty/serial/serial_core.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 89f5d6a..f2c8a8d 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1938,14 +1938,11 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
* console=<name>,0x<addr>,<options>
* is also accepted; the returned @iotype will be UPIO_MEM.
*
- * Returns 0 on success, -EINVAL or -ERANGE on failure
+ * Returns 0 on success or -EINVAL on failure
*/
int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
char **options)
{
- int ret;
- unsigned long long tmp;
-
if (strncmp(p, "mmio,", 5) == 0) {
*iotype = UPIO_MEM;
p += 5;
@@ -1971,10 +1968,11 @@ int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
return -EINVAL;
}
- ret = kstrtoull(p, 0, &tmp);
- if (ret)
- return ret;
- *addr = tmp;
+ /*
+ * Before you replace it with kstrtoull(), think about options separator
+ * (',') it will not tolerate
+ */
+ *addr = simple_strtoull(p, NULL, 0);
p = strchr(p, ',');
if (p)
p++;
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH] serial: core: Fix handling of options after MMIO address
@ 2016-09-12 11:29 ` Alexander Sverdlin
0 siblings, 0 replies; 6+ messages in thread
From: Alexander Sverdlin @ 2016-09-12 11:29 UTC (permalink / raw)
To: Guenter Roeck, linux-kernel; +Cc: linux-serial, Jiri Slaby, Greg Kroah-Hartman
Guenter Roeck reported a regression caused by commit "serial: earlycon:
Extend earlycon command line option to support 64-bit addresses":
console= and earlycon= options have the following format:
...,<addr>,<options>
Historically used here simple_strtoul() had no problems with comma, but the
new and recommended kstrtoull() requires null-terminated string and returns
-EINVAL in case there are "options" at the end. There is no recommended to
use function currently that will support it, so stick to obsolete
simple_strtoull() variant.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
---
drivers/tty/serial/serial_core.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 89f5d6a..f2c8a8d 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1938,14 +1938,11 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
* console=<name>,0x<addr>,<options>
* is also accepted; the returned @iotype will be UPIO_MEM.
*
- * Returns 0 on success, -EINVAL or -ERANGE on failure
+ * Returns 0 on success or -EINVAL on failure
*/
int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
char **options)
{
- int ret;
- unsigned long long tmp;
-
if (strncmp(p, "mmio,", 5) == 0) {
*iotype = UPIO_MEM;
p += 5;
@@ -1971,10 +1968,11 @@ int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
return -EINVAL;
}
- ret = kstrtoull(p, 0, &tmp);
- if (ret)
- return ret;
- *addr = tmp;
+ /*
+ * Before you replace it with kstrtoull(), think about options separator
+ * (',') it will not tolerate
+ */
+ *addr = simple_strtoull(p, NULL, 0);
p = strchr(p, ',');
if (p)
p++;
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] serial: core: Fix handling of options after MMIO address
2016-09-12 11:29 ` Alexander Sverdlin
(?)
@ 2016-09-12 13:27 ` Guenter Roeck
-1 siblings, 0 replies; 6+ messages in thread
From: Guenter Roeck @ 2016-09-12 13:27 UTC (permalink / raw)
To: Alexander Sverdlin, linux-kernel
Cc: linux-serial, Jiri Slaby, Greg Kroah-Hartman
On 09/12/2016 04:29 AM, Alexander Sverdlin wrote:
> Guenter Roeck reported a regression caused by commit "serial: earlycon:
> Extend earlycon command line option to support 64-bit addresses":
>
> console= and earlycon= options have the following format:
> ...,<addr>,<options>
>
> Historically used here simple_strtoul() had no problems with comma, but the
> new and recommended kstrtoull() requires null-terminated string and returns
> -EINVAL in case there are "options" at the end. There is no recommended to
> use function currently that will support it, so stick to obsolete
> simple_strtoull() variant.
>
> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
> Reported-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
> ---
> drivers/tty/serial/serial_core.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
> index 89f5d6a..f2c8a8d 100644
> --- a/drivers/tty/serial/serial_core.c
> +++ b/drivers/tty/serial/serial_core.c
> @@ -1938,14 +1938,11 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
> * console=<name>,0x<addr>,<options>
> * is also accepted; the returned @iotype will be UPIO_MEM.
> *
> - * Returns 0 on success, -EINVAL or -ERANGE on failure
> + * Returns 0 on success or -EINVAL on failure
> */
> int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
> char **options)
> {
> - int ret;
> - unsigned long long tmp;
> -
> if (strncmp(p, "mmio,", 5) == 0) {
> *iotype = UPIO_MEM;
> p += 5;
> @@ -1971,10 +1968,11 @@ int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
> return -EINVAL;
> }
>
> - ret = kstrtoull(p, 0, &tmp);
> - if (ret)
> - return ret;
> - *addr = tmp;
> + /*
> + * Before you replace it with kstrtoull(), think about options separator
> + * (',') it will not tolerate
> + */
> + *addr = simple_strtoull(p, NULL, 0);
> p = strchr(p, ',');
> if (p)
> p++;
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-09-12 14:01 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-09-02 11:20 [PATCH] serial: earlycon: Extend earlycon command line option to support 64-bit addresses Alexander Sverdlin
2016-09-02 11:20 ` Alexander Sverdlin
2016-09-11 0:45 ` Guenter Roeck
2016-09-12 11:29 ` [PATCH] serial: core: Fix handling of options after MMIO address Alexander Sverdlin
2016-09-12 11:29 ` Alexander Sverdlin
2016-09-12 13:27 ` Guenter Roeck
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