2005-04-16 15:20:36 -07:00
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2006-01-06 21:17:50 +01:00
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2005-04-16 15:20:36 -07:00
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2008-10-22 10:00:22 -05:00
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2011-01-05 13:27:04 +01:00
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2005-04-16 15:20:36 -07:00
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2012-11-22 12:30:25 +10:30
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2010-10-26 14:22:26 -07:00
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2005-04-16 15:20:36 -07:00
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2011-01-05 13:27:04 +01:00
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2012-11-22 12:30:25 +10:30
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2005-04-16 15:20:36 -07:00
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2011-08-30 11:24:44 -04:00
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2005-04-16 15:20:36 -07:00
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2013-08-20 15:33:19 +09:30
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2014-08-27 06:21:23 +09:30
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2013-08-20 15:33:19 +09:30
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2010-08-11 23:04:12 -06:00
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2013-08-20 15:33:19 +09:30
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2010-08-11 23:04:12 -06:00
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2010-08-11 23:04:17 -06:00
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2014-08-27 06:22:23 +09:30
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Annotate module params that specify hardware parameters (eg. ioport)
Provided an annotation for module parameters that specify hardware
parameters (such as io ports, iomem addresses, irqs, dma channels, fixed
dma buffers and other types).
This will enable such parameters to be locked down in the core parameter
parser for secure boot support.
I've also included annotations as to what sort of hardware configuration
each module is dealing with for future use. Some of these are
straightforward (ioport, iomem, irq, dma), but there are also:
(1) drivers that switch the semantics of a parameter between ioport and
iomem depending on a second parameter,
(2) drivers that appear to reserve a CPU memory buffer at a fixed address,
(3) other parameters, such as bus types and irq selection bitmasks.
For the moment, the hardware configuration type isn't actually stored,
though its validity is checked.
Signed-off-by: David Howells <dhowells@redhat.com>
2017-04-04 16:54:21 +01:00
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2014-08-27 06:22:23 +09:30
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Annotate module params that specify hardware parameters (eg. ioport)
Provided an annotation for module parameters that specify hardware
parameters (such as io ports, iomem addresses, irqs, dma channels, fixed
dma buffers and other types).
This will enable such parameters to be locked down in the core parameter
parser for secure boot support.
I've also included annotations as to what sort of hardware configuration
each module is dealing with for future use. Some of these are
straightforward (ioport, iomem, irq, dma), but there are also:
(1) drivers that switch the semantics of a parameter between ioport and
iomem depending on a second parameter,
(2) drivers that appear to reserve a CPU memory buffer at a fixed address,
(3) other parameters, such as bus types and irq selection bitmasks.
For the moment, the hardware configuration type isn't actually stored,
though its validity is checked.
Signed-off-by: David Howells <dhowells@redhat.com>
2017-04-04 16:54:21 +01:00
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2014-08-27 06:22:23 +09:30
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2005-04-16 15:20:36 -07:00
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module: add per-module param_lock
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to protect
modification of any and all kernel params. While this generally works,
there is one specific problem with it; a module callback function
cannot safely load another module, i.e. with request_module() or even
with indirect calls such as crypto_has_alg(). If the module to be
loaded has any of its params configured (e.g. with a /etc/modprobe.d/*
config file), then the attempt will result in a deadlock between the
first module param callback waiting for modprobe, and modprobe trying to
lock the single kernel param mutex to set the new module's param.
This fixes that by using per-module mutexes, so that each individual module
is protected against concurrent changes in its own kernel params, but is
not blocked by changes to other module params. All built-in modules
continue to use the built-in mutex, since they will always be loaded at
runtime and references (e.g. request_module(), crypto_has_alg()) to them
will never cause load-time param changing.
This also simplifies the interface used by modules to block sysfs access
to their params; while there are currently functions to block and unblock
sysfs param access which are split up by read and write and expect a single
kernel param to be passed, their actual operation is identical and applies
to all params, not just the one passed to them; they simply lock and unlock
the global param mutex. They are replaced with direct calls to
kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or
if the module is built-in, it locks the built-in mutex.
Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-17 06:18:52 +09:30
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2010-08-11 23:04:12 -06:00
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2015-06-17 06:17:52 +09:30
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2014-08-27 06:22:23 +09:30
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2007-10-16 23:29:34 -07:00
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2005-04-16 15:20:36 -07:00
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2014-10-13 15:55:44 -07:00
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2005-04-16 15:20:36 -07:00
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2011-05-19 16:55:25 -06:00
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2005-04-16 15:20:36 -07:00
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2010-08-11 23:04:20 -06:00
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module: add per-module param_lock
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to protect
modification of any and all kernel params. While this generally works,
there is one specific problem with it; a module callback function
cannot safely load another module, i.e. with request_module() or even
with indirect calls such as crypto_has_alg(). If the module to be
loaded has any of its params configured (e.g. with a /etc/modprobe.d/*
config file), then the attempt will result in a deadlock between the
first module param callback waiting for modprobe, and modprobe trying to
lock the single kernel param mutex to set the new module's param.
This fixes that by using per-module mutexes, so that each individual module
is protected against concurrent changes in its own kernel params, but is
not blocked by changes to other module params. All built-in modules
continue to use the built-in mutex, since they will always be loaded at
runtime and references (e.g. request_module(), crypto_has_alg()) to them
will never cause load-time param changing.
This also simplifies the interface used by modules to block sysfs access
to their params; while there are currently functions to block and unblock
sysfs param access which are split up by read and write and expect a single
kernel param to be passed, their actual operation is identical and applies
to all params, not just the one passed to them; they simply lock and unlock
the global param mutex. They are replaced with direct calls to
kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or
if the module is built-in, it locks the built-in mutex.
Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-17 06:18:52 +09:30
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2010-08-11 23:04:20 -06:00
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2014-08-27 06:23:23 +09:30
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2010-08-11 23:04:20 -06:00
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2014-08-27 06:23:23 +09:30
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2010-08-11 23:04:20 -06:00
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2014-08-27 06:22:23 +09:30
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2012-03-26 12:50:51 +10:30
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2014-08-27 06:23:23 +09:30
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2012-03-26 12:50:51 +10:30
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2014-08-27 06:22:23 +09:30
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2012-03-26 12:50:51 +10:30
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2010-08-11 23:04:20 -06:00
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2008-02-13 15:03:26 -08:00
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2005-04-16 15:20:36 -07:00
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2010-08-11 23:04:20 -06:00
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2014-08-27 06:22:23 +09:30
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[PATCH] Compile-time check re world-writeable module params
One of the mistakes a module_param() user can make is to supply default
value of module parameter as the last argument. module_param() accepts
permissions instead. If default value is, say, 3 (-------wx), parameter
becomes world-writeable.
So far, the only remedy was to apply grep(1) and read drivers submitted
to -mm. BTDT.
With this patch applied, compiler will finally do some job.
*) bounds checking on permissions
*) world-writeable bit checking on permissions
*) compile breakage if checks trigger
First version of this check (only "& 2" part) directly caught 4 out of 7
places during my last grep.
Subject: Neverending module_param() bugs
[X] drivers/acpi/sbs.c:101:module_param(capacity_mode, int, CAPACITY_UNIT);
[X] drivers/acpi/sbs.c:102:module_param(update_mode, int, UPDATE_MODE);
[ ] drivers/acpi/sbs.c:103:module_param(update_info_mode, int, UPDATE_INFO_MODE);
[ ] drivers/acpi/sbs.c:104:module_param(update_time, int, UPDATE_TIME);
[ ] drivers/acpi/sbs.c:105:module_param(update_time2, int, UPDATE_TIME2);
[X] drivers/char/watchdog/sbc8360.c:203:module_param(timeout, int, 27);
[X] drivers/media/video/tuner-simple.c:13:module_param(offset, int, 0666);
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-06 20:36:56 -08:00
|
|
|
|
module: add per-module param_lock
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to protect
modification of any and all kernel params. While this generally works,
there is one specific problem with it; a module callback function
cannot safely load another module, i.e. with request_module() or even
with indirect calls such as crypto_has_alg(). If the module to be
loaded has any of its params configured (e.g. with a /etc/modprobe.d/*
config file), then the attempt will result in a deadlock between the
first module param callback waiting for modprobe, and modprobe trying to
lock the single kernel param mutex to set the new module's param.
This fixes that by using per-module mutexes, so that each individual module
is protected against concurrent changes in its own kernel params, but is
not blocked by changes to other module params. All built-in modules
continue to use the built-in mutex, since they will always be loaded at
runtime and references (e.g. request_module(), crypto_has_alg()) to them
will never cause load-time param changing.
This also simplifies the interface used by modules to block sysfs access
to their params; while there are currently functions to block and unblock
sysfs param access which are split up by read and write and expect a single
kernel param to be passed, their actual operation is identical and applies
to all params, not just the one passed to them; they simply lock and unlock
the global param mutex. They are replaced with direct calls to
kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or
if the module is built-in, it locks the built-in mutex.
Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-17 06:18:52 +09:30
|
|
|
|
2008-02-13 15:03:26 -08:00
|
|
|
|
2008-01-24 22:16:20 +01:00
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
|
module: add per-module param_lock
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to protect
modification of any and all kernel params. While this generally works,
there is one specific problem with it; a module callback function
cannot safely load another module, i.e. with request_module() or even
with indirect calls such as crypto_has_alg(). If the module to be
loaded has any of its params configured (e.g. with a /etc/modprobe.d/*
config file), then the attempt will result in a deadlock between the
first module param callback waiting for modprobe, and modprobe trying to
lock the single kernel param mutex to set the new module's param.
This fixes that by using per-module mutexes, so that each individual module
is protected against concurrent changes in its own kernel params, but is
not blocked by changes to other module params. All built-in modules
continue to use the built-in mutex, since they will always be loaded at
runtime and references (e.g. request_module(), crypto_has_alg()) to them
will never cause load-time param changing.
This also simplifies the interface used by modules to block sysfs access
to their params; while there are currently functions to block and unblock
sysfs param access which are split up by read and write and expect a single
kernel param to be passed, their actual operation is identical and applies
to all params, not just the one passed to them; they simply lock and unlock
the global param mutex. They are replaced with direct calls to
kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or
if the module is built-in, it locks the built-in mutex.
Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-17 06:18:52 +09:30
|
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|
2010-08-11 23:04:12 -06:00
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2015-05-27 11:09:38 +09:30
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|
2014-09-11 09:47:23 +09:30
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2010-08-11 23:04:12 -06:00
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2014-08-27 06:22:23 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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|
2010-08-11 23:04:19 -06:00
|
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|
|
module: add per-module param_lock
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to protect
modification of any and all kernel params. While this generally works,
there is one specific problem with it; a module callback function
cannot safely load another module, i.e. with request_module() or even
with indirect calls such as crypto_has_alg(). If the module to be
loaded has any of its params configured (e.g. with a /etc/modprobe.d/*
config file), then the attempt will result in a deadlock between the
first module param callback waiting for modprobe, and modprobe trying to
lock the single kernel param mutex to set the new module's param.
This fixes that by using per-module mutexes, so that each individual module
is protected against concurrent changes in its own kernel params, but is
not blocked by changes to other module params. All built-in modules
continue to use the built-in mutex, since they will always be loaded at
runtime and references (e.g. request_module(), crypto_has_alg()) to them
will never cause load-time param changing.
This also simplifies the interface used by modules to block sysfs access
to their params; while there are currently functions to block and unblock
sysfs param access which are split up by read and write and expect a single
kernel param to be passed, their actual operation is identical and applies
to all params, not just the one passed to them; they simply lock and unlock
the global param mutex. They are replaced with direct calls to
kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or
if the module is built-in, it locks the built-in mutex.
Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-17 06:18:52 +09:30
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2010-08-11 23:04:19 -06:00
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module: add per-module param_lock
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to protect
modification of any and all kernel params. While this generally works,
there is one specific problem with it; a module callback function
cannot safely load another module, i.e. with request_module() or even
with indirect calls such as crypto_has_alg(). If the module to be
loaded has any of its params configured (e.g. with a /etc/modprobe.d/*
config file), then the attempt will result in a deadlock between the
first module param callback waiting for modprobe, and modprobe trying to
lock the single kernel param mutex to set the new module's param.
This fixes that by using per-module mutexes, so that each individual module
is protected against concurrent changes in its own kernel params, but is
not blocked by changes to other module params. All built-in modules
continue to use the built-in mutex, since they will always be loaded at
runtime and references (e.g. request_module(), crypto_has_alg()) to them
will never cause load-time param changing.
This also simplifies the interface used by modules to block sysfs access
to their params; while there are currently functions to block and unblock
sysfs param access which are split up by read and write and expect a single
kernel param to be passed, their actual operation is identical and applies
to all params, not just the one passed to them; they simply lock and unlock
the global param mutex. They are replaced with direct calls to
kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or
if the module is built-in, it locks the built-in mutex.
Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-17 06:18:52 +09:30
|
|
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|
2010-08-11 23:04:19 -06:00
|
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|
|
|
|
|
|
|
module: add per-module param_lock
Add a "param_lock" mutex to each module, and update params.c to use
the correct built-in or module mutex while locking kernel params.
Remove the kparam_block_sysfs_r/w() macros, replace them with direct
calls to kernel_param_[un]lock(module).
The kernel param code currently uses a single mutex to protect
modification of any and all kernel params. While this generally works,
there is one specific problem with it; a module callback function
cannot safely load another module, i.e. with request_module() or even
with indirect calls such as crypto_has_alg(). If the module to be
loaded has any of its params configured (e.g. with a /etc/modprobe.d/*
config file), then the attempt will result in a deadlock between the
first module param callback waiting for modprobe, and modprobe trying to
lock the single kernel param mutex to set the new module's param.
This fixes that by using per-module mutexes, so that each individual module
is protected against concurrent changes in its own kernel params, but is
not blocked by changes to other module params. All built-in modules
continue to use the built-in mutex, since they will always be loaded at
runtime and references (e.g. request_module(), crypto_has_alg()) to them
will never cause load-time param changing.
This also simplifies the interface used by modules to block sysfs access
to their params; while there are currently functions to block and unblock
sysfs param access which are split up by read and write and expect a single
kernel param to be passed, their actual operation is identical and applies
to all params, not just the one passed to them; they simply lock and unlock
the global param mutex. They are replaced with direct calls to
kernel_param_[un]lock(THIS_MODULE), which locks THIS_MODULE's param_lock, or
if the module is built-in, it locks the built-in mutex.
Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-17 06:18:52 +09:30
|
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2010-08-11 23:04:19 -06:00
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2008-10-22 10:00:23 -05:00
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2010-08-11 23:04:20 -06:00
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2008-10-22 10:00:23 -05:00
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2014-08-27 06:22:23 +09:30
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2015-03-30 16:20:09 -07:00
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2008-10-22 10:00:23 -05:00
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2010-08-11 23:04:20 -06:00
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2005-04-16 15:20:36 -07:00
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2007-10-16 23:29:34 -07:00
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2005-04-16 15:20:36 -07:00
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2009-06-12 21:46:57 -06:00
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2010-08-11 23:04:12 -06:00
|
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2014-08-27 06:22:23 +09:30
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2005-04-16 15:20:36 -07:00
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2011-10-10 00:03:37 +02:00
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2005-04-16 15:20:36 -07:00
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2014-04-28 11:34:33 +09:30
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2005-04-16 15:20:36 -07:00
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2010-08-11 23:04:18 -06:00
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2005-04-16 15:20:36 -07:00
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2012-03-26 12:50:51 +10:30
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module: add extra argument for parse_params() callback
This adds an extra argument onto parse_params() to be used
as a way to make the unused callback a bit more useful and
generic by allowing the caller to pass on a data structure
of its choice. An example use case is to allow us to easily
make module parameters for every module which we will do
next.
@ parse @
identifier name, args, params, num, level_min, level_max;
identifier unknown, param, val, doing;
type s16;
@@
extern char *parse_args(const char *name,
char *args,
const struct kernel_param *params,
unsigned num,
s16 level_min,
s16 level_max,
+ void *arg,
int (*unknown)(char *param, char *val,
const char *doing
+ , void *arg
));
@ parse_mod @
identifier name, args, params, num, level_min, level_max;
identifier unknown, param, val, doing;
type s16;
@@
char *parse_args(const char *name,
char *args,
const struct kernel_param *params,
unsigned num,
s16 level_min,
s16 level_max,
+ void *arg,
int (*unknown)(char *param, char *val,
const char *doing
+ , void *arg
))
{
...
}
@ parse_args_found @
expression R, E1, E2, E3, E4, E5, E6;
identifier func;
@@
(
R =
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
func);
|
R =
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
&func);
|
R =
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
NULL);
|
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
func);
|
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
&func);
|
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
NULL);
)
@ parse_args_unused depends on parse_args_found @
identifier parse_args_found.func;
@@
int func(char *param, char *val, const char *unused
+ , void *arg
)
{
...
}
@ mod_unused depends on parse_args_found @
identifier parse_args_found.func;
expression A1, A2, A3;
@@
- func(A1, A2, A3);
+ func(A1, A2, A3, NULL);
Generated-by: Coccinelle SmPL
Cc: cocci@systeme.lip6.fr
Cc: Tejun Heo <tj@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Ewan Milne <emilne@redhat.com>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Tejun Heo <tj@kernel.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-30 16:20:03 -07:00
|
|
|
|
params: add 3rd arg to option handler callback signature
Add a 3rd arg, named "doing", to unknown-options callbacks invoked
from parse_args(). The arg is passed as:
"Booting kernel" from start_kernel(),
initcall_level_names[i] from do_initcall_level(),
mod->name from load_module(), via parse_args(), parse_one()
parse_args() already has the "name" parameter, which is renamed to
"doing" to better reflect current uses 1,2 above. parse_args() passes
it to an altered parse_one(), which now passes it down into the
unknown option handler callbacks.
The mod->name will be needed to handle dyndbg for loadable modules,
since params passed by modprobe are not qualified (they do not have a
"$modname." prefix), and by the time the unknown-param callback is
called, the module name is not otherwise available.
Minor tweaks:
Add param-name to parse_one's pr_debug(), current message doesnt
identify the param being handled, add it.
Add a pr_info to print current level and level_name of the initcall,
and number of registered initcalls at that level. This adds 7 lines
to dmesg output, like:
initlevel:6=device, 172 registered initcalls
Drop "parameters" from initcall_level_names[], its unhelpful in the
pr_info() added above. This array is passed into parse_args() by
do_initcall_level().
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Acked-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-27 14:30:34 -06:00
|
|
|
|
module: add extra argument for parse_params() callback
This adds an extra argument onto parse_params() to be used
as a way to make the unused callback a bit more useful and
generic by allowing the caller to pass on a data structure
of its choice. An example use case is to allow us to easily
make module parameters for every module which we will do
next.
@ parse @
identifier name, args, params, num, level_min, level_max;
identifier unknown, param, val, doing;
type s16;
@@
extern char *parse_args(const char *name,
char *args,
const struct kernel_param *params,
unsigned num,
s16 level_min,
s16 level_max,
+ void *arg,
int (*unknown)(char *param, char *val,
const char *doing
+ , void *arg
));
@ parse_mod @
identifier name, args, params, num, level_min, level_max;
identifier unknown, param, val, doing;
type s16;
@@
char *parse_args(const char *name,
char *args,
const struct kernel_param *params,
unsigned num,
s16 level_min,
s16 level_max,
+ void *arg,
int (*unknown)(char *param, char *val,
const char *doing
+ , void *arg
))
{
...
}
@ parse_args_found @
expression R, E1, E2, E3, E4, E5, E6;
identifier func;
@@
(
R =
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
func);
|
R =
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
&func);
|
R =
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
NULL);
|
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
func);
|
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
&func);
|
parse_args(E1, E2, E3, E4, E5, E6,
+ NULL,
NULL);
)
@ parse_args_unused depends on parse_args_found @
identifier parse_args_found.func;
@@
int func(char *param, char *val, const char *unused
+ , void *arg
)
{
...
}
@ mod_unused depends on parse_args_found @
identifier parse_args_found.func;
expression A1, A2, A3;
@@
- func(A1, A2, A3);
+ func(A1, A2, A3, NULL);
Generated-by: Coccinelle SmPL
Cc: cocci@systeme.lip6.fr
Cc: Tejun Heo <tj@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Ewan Milne <emilne@redhat.com>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Tejun Heo <tj@kernel.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-30 16:20:03 -07:00
|
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2005-04-16 15:20:36 -07:00
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2009-03-31 13:05:29 -06:00
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2005-04-16 15:20:36 -07:00
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2014-03-17 13:18:26 +10:30
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2014-06-25 15:27:37 +02:00
|
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2015-05-27 11:09:38 +09:30
|
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2010-08-11 23:04:12 -06:00
|
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2015-11-06 16:29:12 -08:00
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2005-04-16 15:20:36 -07:00
|
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2012-01-13 09:32:28 +10:30
|
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2015-05-27 11:09:38 +09:30
|
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2010-08-11 23:04:12 -06:00
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2012-01-13 09:32:28 +10:30
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2009-06-12 21:46:53 -06:00
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2005-04-16 15:20:36 -07:00
|
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2012-01-13 09:32:17 +10:30
|
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2015-05-27 11:09:38 +09:30
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2012-01-13 09:32:17 +10:30
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2010-08-11 23:04:20 -06:00
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2005-04-16 15:20:36 -07:00
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2012-01-13 09:32:16 +10:30
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2007-10-16 23:29:34 -07:00
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2011-05-19 16:55:25 -06:00
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2009-06-12 21:46:57 -06:00
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2010-08-11 23:04:12 -06:00
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2009-06-12 21:46:57 -06:00
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2014-08-27 06:22:23 +09:30
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2005-04-16 15:20:36 -07:00
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Annotate module params that specify hardware parameters (eg. ioport)
Provided an annotation for module parameters that specify hardware
parameters (such as io ports, iomem addresses, irqs, dma channels, fixed
dma buffers and other types).
This will enable such parameters to be locked down in the core parameter
parser for secure boot support.
I've also included annotations as to what sort of hardware configuration
each module is dealing with for future use. Some of these are
straightforward (ioport, iomem, irq, dma), but there are also:
(1) drivers that switch the semantics of a parameter between ioport and
iomem depending on a second parameter,
(2) drivers that appear to reserve a CPU memory buffer at a fixed address,
(3) other parameters, such as bus types and irq selection bitmasks.
For the moment, the hardware configuration type isn't actually stored,
though its validity is checked.
Signed-off-by: David Howells <dhowells@redhat.com>
2017-04-04 16:54:21 +01:00
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2017-07-02 15:21:56 +02:00
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Annotate module params that specify hardware parameters (eg. ioport)
Provided an annotation for module parameters that specify hardware
parameters (such as io ports, iomem addresses, irqs, dma channels, fixed
dma buffers and other types).
This will enable such parameters to be locked down in the core parameter
parser for secure boot support.
I've also included annotations as to what sort of hardware configuration
each module is dealing with for future use. Some of these are
straightforward (ioport, iomem, irq, dma), but there are also:
(1) drivers that switch the semantics of a parameter between ioport and
iomem depending on a second parameter,
(2) drivers that appear to reserve a CPU memory buffer at a fixed address,
(3) other parameters, such as bus types and irq selection bitmasks.
For the moment, the hardware configuration type isn't actually stored,
though its validity is checked.
Signed-off-by: David Howells <dhowells@redhat.com>
2017-04-04 16:54:21 +01:00
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2015-05-27 11:09:38 +09:30
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2005-04-16 15:20:36 -07:00
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2015-05-27 11:09:38 +09:30
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2013-07-02 15:35:11 +09:30
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2005-04-16 15:20:36 -07:00
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2007-02-13 15:19:06 -08:00
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2005-04-16 15:20:36 -07:00
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2010-08-11 23:04:12 -06:00
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2005-04-16 15:20:36 -07:00
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2007-02-13 15:19:06 -08:00
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2010-08-11 23:04:12 -06:00
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2007-02-13 15:19:06 -08:00
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2005-04-16 15:20:36 -07:00
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