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2010 Apr 10
3
[PATCH 1/3] fbmem: fix aperture overlapping check
...f the first range
+ * @start2: start of the second range
+ * @size2: length of the second range
+ */
+#define ranges_overlap(start1, size1, start2, size2) ({ \
+ typeof(start1) __start1 = (start1); \
+ typeof(size1) __size1 = (size1); \
+ typeof(start2) __start2 = (start2); \
+ typeof(size2) __size2 = (size2); \
+ __start1 < __start2 + __size2 && __start1 + __size1 > __start2; \
+})
+
static bool fb_do_apertures_overlap(struct fb_info *gen, struct fb_info *hw)
{
- /* is the generic aperture base the same as the HW one */
- if (gen->aperture_base == hw->aperture_base)
-...