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new helper: drm_ioctl_kernel()

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drm_ioctl() guts sans copying the structure to/from userland
and parsing the ioctl cmd.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-05-24 12:31:12 -04:00
parent 2ea659a9ef
commit 7f0dfc1625
2 changed files with 28 additions and 14 deletions
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1
include/drm/drm_ioctl.h
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@ -172,6 +172,7 @@ struct drm_ioctl_desc {
int drm_ioctl_permit(u32 flags, struct drm_file *file_priv);
long drm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
long drm_ioctl_kernel(struct file *, drm_ioctl_t, void *, u32);
#ifdef CONFIG_COMPAT
long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
#else