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There are several warnings reported by sparse with regards to wrong
typecasts:
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:73:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:73:13: expected void *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:73:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:247:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:247:13: expected unsigned int [usertype] *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:247:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:248:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:248:13: expected unsigned int [usertype] *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:248:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:249:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:249:13: expected unsigned int [usertype] *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:249:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:250:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:250:13: expected unsigned int [usertype] *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:250:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:282:30: warning: incorrect type in argument 2 (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:282:30: expected void const *from
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:282:30: got struct atomisp_3a_statistics [noderef] __user *kp
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:308:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:308:13: expected unsigned int [usertype] *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:308:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:327:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:327:13: expected void [noderef] __user *effective_width
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:327:13: got unsigned int [usertype] *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:348:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:348:13: expected void [noderef] __user *effective_width
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:348:13: got unsigned int [usertype] *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:372:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:372:13: expected unsigned int [usertype] *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:372:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:433:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:433:13: expected struct v4l2_framebuffer *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:433:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:462:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:462:13: expected void [noderef] __user *frame
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:462:13: got struct v4l2_framebuffer *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:496:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:496:13: expected unsigned short *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:496:13: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:511:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:511:13: expected void [noderef] __user *calb_grp_values
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:511:13: got unsigned short *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:630:21: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:630:21: expected unsigned short [usertype] *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:630:21: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: warning: cast removes address space '__user' of expression
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: warning: incorrect type in initializer (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: expected struct <noident> [noderef] __user *karg
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:715:27: got void *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:721:39: warning: cast removes address space '__user' of expression
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:21: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:21: expected void const volatile [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:21: got unsigned int [usertype] *src
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:43: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:43: expected void *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:725:43: got void [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:741:21: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:741:21: expected struct atomisp_shading_table *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:741:21: got struct atomisp_shading_table [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:747:21: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:747:21: expected struct atomisp_morph_table *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:747:21: got struct atomisp_morph_table [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:753:21: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:753:21: expected struct atomisp_dis_coefficients *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:753:21: got struct atomisp_dis_coefficients [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:760:14: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:760:14: expected struct atomisp_dvs_6axis_config *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:760:14: got struct atomisp_dvs_6axis_config [noderef] __user *
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:817:13: warning: incorrect type in assignment (different address spaces)
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:817:13: expected struct atomisp_sensor_ae_bracketing_lut_entry *__pu_val
drivers/staging/media/atomisp/pci/atomisp_compat_ioctl32.c:817:13: got void [noderef] __user *
Use the same strategies used at v4l2-compat32.c, in order to
solve them and avoid warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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 Restructured Text 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.