Hi,


On 2024/2/2 19:58, Thomas Zimmermann wrote:

+static inline void __screen_info_set_lfb_base(struct screen_info *si, u64 lfb_base)
+{
+	si->lfb_base = lfb_base & GENMASK_ULL(31, 0);
+	si->ext_lfb_base = (lfb_base & GENMASK_ULL(63, 32)) >> 32;

I want to ask a trivial question: why not simply write it like below?

si->lfb_base = (u32)lfb_base;

si->ext_lfb_base = lfb_base >> 32;

I'm asking because I feel it is a little bit complicated.

+	if (si->ext_lfb_base)
+		si->capabilities |= VIDEO_CAPABILITY_64BIT_BASE;
+	else
+		si->capabilities &= ~VIDEO_CAPABILITY_64BIT_BASE;
+}
+