Hi, On 2023/8/18 06:08, Bjorn Helgaas wrote:
+ if (resource_type(res) != IORESOURCE_MEM) + continue; + + if (!res->start || !res->end) + continue; + + if (res->start <= fb_start && fb_end <= res->end) { + pdev_boot_vga = pdev; + + vgaarb_info(&pdev->dev, + "BAR %d contains firmware FB\n", i);Print the BAR with %pR and include the framebuffer region from screen_info in the same format.
I do remember that you already told me to do this in V3, sorry for not replying to you at V3. Most of the time, what you tell me is right.But here, I think I need to explain. Because doing it that way will make the code line too long,and it will exceed 80 characters in the column if we print too much. I believe that the vgaarb_info() at here is already the most compact and simplest form. Printing the BAR with %pR is not absolute necessary, because we can get the additional information by: $ lspci | grep VGA
$ dmesg | grep 05:00.0 $ dmesg | grep 0000:03:00.0 $ dmesg | grep PCI Actually, I only add something that is absolute necessary. Printing BAR with %pR and/or Printing the framebuffer region is consider to only for *debugging* purpose.
