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Clang warns:
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:2663:47: warning:
address of array 'param->u.wpa_ie.data' will always evaluate to 'true'
[-Wpointer-bool-conversion]
(param->u.wpa_ie.len && !param->u.wpa_ie.data))
~~~~~~~~~~~~~~~~~^~~~
This was exposed by commit deabe03523a7 ("Staging: rtl8192u: ieee80211:
Use !x in place of NULL comparisons") because we disable the warning
that would have pointed out the comparison against NULL is also false:
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:2663:46: warning:
comparison of array 'param->u.wpa_ie.data' equal to a null pointer is
always false [-Wtautological-pointer-compare]
(param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
~~~~~~~~~~~~~~~~^~~~ ~~~~
Remove it so clang no longer warns.
Link: https://github.com/ClangBuiltLinux/linux/issues/487
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All the attribute show call-backs check whether pcard is NULL. However,
pci_set_drvdata(pdev, pcard) is called before the sysfs files are
created during probe, and pci_set_drvdata(pdev, NULL) is not called
until after they are destroyed during remove; therefore, pcard will not
be NULL, and we can drop the checks.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All the call-backs used the same formula to retrieve the pcard from dev:
struct pci_dev *pdev = to_pci_dev(dev);
struct kp2000_device *pcard;
if (!pdev)
return NULL;
pcard = pci_get_drvdata(pdev);
Since to_pci_dev is a wrapper for container_of, it will not return NULL,
and since pci_get_drvdata just calls dev_get_drvdata on the dev member
of pdev, this is equivalent to:
struct kp2000_device *pcard = dev_get_drvdata(&(container_of(dev, struct pci_dev, dev)->dev));
and we can simplify it to:
struct kp2000_device *pcard = dev_get_drvdata(dev);
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Previously the next card number was assigned from a static int local
variable. Replaced it with an IDA. Avoids the assignment of ever-
increasing card-numbers by allowing them to be reused.
Updated TODO.
Corrected format-specifier for unsigned pcard->card_num.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Defined separate simple show functions for each attribute instead of
having a one big one containing a chain of conditionals.
Replaced calls to scnprintf with sprintf since all the outputs are
single integers.
All the readable device attributes are read-only, so used DEVICE_ATTR_RO
to define them.
The definitions are only used to populate the kp_attr_list attribute
array, so declared them as static.
Fixes the following sparse warnings:
drivers/staging/kpc2000/kpc2000/core.c:152:1: warning: symbol 'dev_attr_ssid' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:153:1: warning: symbol 'dev_attr_ddna' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:154:1: warning: symbol 'dev_attr_card_id' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:155:1: warning: symbol 'dev_attr_hw_rev' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:156:1: warning: symbol 'dev_attr_build' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:157:1: warning: symbol 'dev_attr_build_date' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:158:1: warning: symbol 'dev_attr_build_time' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:159:1: warning: symbol 'dev_attr_cpld_reg' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/core.c:161:1: warning: symbol 'dev_attr_cpld_reconfigure' was not declared. Should it be static?
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The attribute call-backs all use the same formula to get the pcard from
dev:
struct pci_dev *pdev = to_pci_dev(dev);
struct kp2000_device *pcard;
if (!pdev)
return -ENXIO;
pcard = pci_get_drvdata(pdev);
if (!pcard)
return -ENXIO;
Added a function to reduce the duplicated code.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following Coverity warning:
File: drivers/staging/rtl8723bs/os_dep/ioctl_linux.c in function
rtw_dbg_port():
CID 18480: Operands don't affect result (CONSTANT_EXPRESSION_RESULT)
dead_error_condition: The condition (extra_arg & 7U) > 7U cannot be true.
if ((extra_arg & 0x07) > 0x07)
padapter->driver_ampdu_spacing = 0xFF;
else
padapter->driver_ampdu_spacing = extra_arg;
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The masking update of pkg_offset is redundant as the updated
value is never read and pkg_offset is re-assigned on the next
iteration of the loop. Clean this up by removing the redundant
assignment.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Adham Abozaeid <adham.abozaeid@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The arcx-anybus's registers are accessed via a memory-mapped
IO region. A regmap associated with this region is created
using custom reg_read() / reg_write() callbacks.
However, an abstraction which creates a memory-mapped IO
region backed regmap already exists: devm_regmap_init_mmio().
Replace the custom regmap with the existing kernel abstraction.
As a pleasant side-effect, sparse warnings now disappear.
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change (x == NULL) to !x and (x != NULL) to x, to fix
following checkpatch.pl warnings:
CHECK: Comparison to NULL could be written "!x".
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change comparison to zero to !x.
Replace (x == 0) to !x.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use "%s", __func__ in place of strings which contain function names.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove functions which just print the name of function and return 0,
These functions fake the network core to say that they support these
options.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The show functions of two attributes output nothing and they are unused.
Removed them.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Reported-by: Matt Sickler <matt.sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Defined separate simple show functions for each attribute instead of
having a one big one containing a chain of conditionals.
Replaced scnprintf calls with sprintf since all the outputs are short
bounded strings or single integers.
All of the device attributes are read-only, so used DEVICE_ATTR_RO to
define them.
The definitions are only used to populate the kpc_uio_class_attrs
attribute array, so declared them as static.
Fixes the following sparse warnings:
drivers/staging/kpc2000/kpc2000/cell_probe.c:220:1: warning: symbol 'dev_attr_offset' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/cell_probe.c:221:1: warning: symbol 'dev_attr_size' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/cell_probe.c:222:1: warning: symbol 'dev_attr_type' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/cell_probe.c:223:1: warning: symbol 'dev_attr_s2c_dma' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/cell_probe.c:224:1: warning: symbol 'dev_attr_c2s_dma' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/cell_probe.c:225:1: warning: symbol 'dev_attr_irq_count' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/cell_probe.c:226:1: warning: symbol 'dev_attr_irq_base_num' was not declared. Should it be static?
drivers/staging/kpc2000/kpc2000/cell_probe.c:227:1: warning: symbol 'dev_attr_core_num' was not declared. Should it be static?
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove local variable psdio which is declared but not used (or returned)
in its function.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Check for error during device initialization callback and return a
meaningful error code or zero on success.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Avoid discarding function's return code during register initialization.
Handle it instead and return 0 on success or a negative errno value on
error.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Check on called function's returned value for error and return 0 on
success or a negative errno value on error instead of a boolean value.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Avoid discarding return value of functions called during firmware
management process. Handle such return value and return 0 on success or
a negative errno value on error.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change some of the driver's functions in order to handle error codes
instead of discarding them. These function now returns 0 on success and
a negative errno value on error.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Avoid discarding called function's returned value. Store it instead in
order to act accordingly.
Update error path to return 0 on success and a negative errno value on
error.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
vnt_free_tx_bufs() relies on priv->tx_context elements to be NULL if
they are not initialized (as vnt_free_rx_bufs() does). Add a check to
these elements in order to avoid NULL pointer dereference.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix following checkpatch.pl warning by adding braces around if
statement:
CHECK: braces {} should be used on all arms of this statement
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove else after break statements to fix following checkpatch.pl
warnings:
WARNING: else is not generally useful after a break or return.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes the misspelling of packet in
<MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE>
Signed-off-by: Yannick Loeck <yannick.loeck@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As this is only called twice, just call writel() like a normal driver
should :)
At the same time, clean up the formatting for the irq handler, as there
is no need to have that be incorrect, it just hurts the eyes...
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The functions GetBackEndStatus() and BackEndControlSetClear() are never
used by any code, so just remove them.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need for a subdirectory for just a single .c file. So move
it out of kpc_i2c/ and rename it to the module name that we want the
file to build to, saving one more linking stage.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need for a subdirectory for just a single .c file. So move
it out of kpc_spi/ and rename it to the module name that we want the
file to build to, saving one more linking stage.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The structures defined in spi_parts.h belong in the .c file that uses
it. So move it directly into spi_driver.c to make things simpler to
manage.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The fileops.c file does not need to be stand-alone, so move it into the
core.c file. This lets us make some functions static, reducing the
global namespace of the driver.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix following checkpatch.pl warning by removing unnecessary braces:
WARNING: braces {} are not necessary for single statement blocks
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Resolve the following warning from the Kconfig,
"WARNING: prefer 'help' over '---help---' for new help texts"
Signed-off-by: Moses Christopher <moseschristopherb@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Resolve the following warning from the Kconfig,
"WARNING: prefer 'help' over '---help---' for new help texts"
Signed-off-by: Moses Christopher <moseschristopherb@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Resolve the following warning from the Kconfig,
"WARNING: prefer 'help' over '---help---' for new help texts"
Signed-off-by: Moses Christopher <moseschristopherb@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Resolve the following warning from the Kconfig,
"WARNING: prefer 'help' over '---help---' for new help texts"
Signed-off-by: Moses Christopher <moseschristopherb@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Resolve the following warning from the Kconfig,
"WARNING: prefer 'help' over '---help---' for new help texts
Signed-off-by: Moses Christopher <moseschristopherb@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Resolve the following warning from the Kconfig,
"WARNING: prefer 'help' over '---help---' for new help texts"
Signed-off-by: Moses Christopher <moseschristopherb@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Throughout i2c_driver.c, there are numerous deviations from the two
standards of:
- placing a '*' at the beginning of every line containing a
block comment.
- placing the closing comment marker '*/' on a new line.
Instead, use a block comment style that is more consistent with the
prescribed guidelines.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Throughout i2c_driver.c, there are instances where the log strings
contain the function's name hardcoded into the string. Instead, use the
printk conversion specifier '%s' with the __func__ preprocessor
identifier to more maintainably print the function's name.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The probe() function performs a kzalloc to dynamically allocate memory
at runtime. If the allocation succeeds, yet invoking the function
i2c_add_adapter fails, the dynamically allocated memory is never freed.
Change the allocation to use the managed allocation API instead and
remove the manual freeing of the memory in the remove() function.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The copyright header in i2c_driver.c is difficult to read and not
chronologically ordered. Reformat and reorganize the copyright header
to be similar to other drivers in the i2c subsystem.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
i2c_driver.c uses a mixture of space and tab indentations which
conflicts with the kernel coding style guide. Reindent i2c_driver.c.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We do not need an inline function to "hide" the lock, so just replace
the few calls to these functions with the "real" mutex_lock/unlock()
calls.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The kp200_module.c does not need to be stand-alone, so move it into the
core.c file. This lets us make some functions static, reducing the
global namespace of the driver.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These changes solve a warning realated to an incorrect type inilizer in the function
fieldbus_poll.
Signed-off-by: Oscar Gomez Fuente <oscargomezf@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
