drm/i915/gem: Hook user-extensions upto MMAP_OFFSET_IOCTL (126d5de3) · Commits · 戴 / test

Call i915_user_extensions() to validate the arg->extensions pointer, and so return consistent error numbers for the future. Signed-off-by:

Chris Wilson <chris@chris-wilson.co.uk> Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by:

drivers/gpu/drm/i915/gem/i915_gem_mman.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		#include "i915_gem_object.h"
		#include "i915_gem_mman.h"
		#include "i915_trace.h"
		#include "i915_user_extensions.h"
		#include "i915_vma.h"

		static inline bool
		@@ -617,9 +618,12 @@ i915_gem_mmap_offset_ioctl(struct drm_device dev, void data,
		struct drm_i915_private *i915 = to_i915(dev);
		struct drm_i915_gem_mmap_offset *args = data;
		enum i915_mmap_type type;
		int err;

		if (args->extensions)
		return -EINVAL;
		err = i915_user_extensions(u64_to_user_ptr(args->extensions),
		NULL, 0, NULL);
		if (err)
		return err;

		switch (args->flags) {
		case I915_MMAP_OFFSET_GTT: