From: Emil Velikov Date: Mon, 14 Jan 2019 08:43:05 +0000 (+0000) Subject: drm: drop DRM_AUTH requirement from AUTH_MAGIC ioctl X-Git-Tag: v5.1-rc1~117^2^2~6 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=4933c9a494416a8edc3166ce3f3ce3836a6af01d;p=linux.git drm: drop DRM_AUTH requirement from AUTH_MAGIC ioctl Currently only an authenticated master can authenticate another client. In practise the client can only be master if CAP_SYS_ADMIN is present, although having the CAP also sets the client as authenticated. Thus DRM_AUTH in AUTH_MAGIC's "DRM_AUTH | DRM_MASTER" is superfluous. Notices while working on IGT tests. Signed-off-by: Emil Velikov Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20190114084305.15141-1-emil.l.velikov@gmail.com --- diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 7e6746b2d704..ab5692104ea0 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -570,7 +570,7 @@ static const struct drm_ioctl_desc drm_ioctls[] = { DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_UNLOCKED|DRM_MASTER), + DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_UNLOCKED|DRM_MASTER), DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_legacy_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_legacy_rmmap_ioctl, DRM_AUTH),