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5ce9891ea9
Returning values through arguments is confusing and that has
upset the compiler with the recent change to memdup_user:
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c: In function ‘adf_ctl_ioctl’:
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:308:26: warning: ‘ctl_data’ may be used uninitialized [-Wmaybe-uninitialized]
308 | ctl_data->device_id);
| ^~
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:294:39: note: ‘ctl_data’ was declared here
294 | struct adf_user_cfg_ctl_data *ctl_data;
| ^~~~~~~~
In function ‘adf_ctl_ioctl_dev_stop’,
inlined from ‘adf_ctl_ioctl’ at ../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:386:9:
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:273:48: warning: ‘ctl_data’ may be used uninitialized [-Wmaybe-uninitialized]
273 | ret = adf_ctl_is_device_in_use(ctl_data->device_id);
| ~~~~~~~~^~~~~~~~~~~
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c: In function ‘adf_ctl_ioctl’:
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:261:39: note: ‘ctl_data’ was declared here
261 | struct adf_user_cfg_ctl_data *ctl_data;
| ^~~~~~~~
In function ‘adf_ctl_ioctl_dev_config’,
inlined from ‘adf_ctl_ioctl’ at ../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:382:9:
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:192:54: warning: ‘ctl_data’ may be used uninitialized [-Wmaybe-uninitialized]
192 | accel_dev = adf_devmgr_get_dev_by_id(ctl_data->device_id);
| ~~~~~~~~^~~~~~~~~~~
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c: In function ‘adf_ctl_ioctl’:
../drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c:185:39: note: ‘ctl_data’ was declared here
185 | struct adf_user_cfg_ctl_data *ctl_data;
| ^~~~~~~~
Fix this by returning the pointer directly.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Thorsten Blum <thorsten.blum@linux.dev>
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.