[M] Change in flashrom[master]: flashrom.c:Add function to get a flattened view of the chip erase blocks

[Aarya (Code Review)]

Attention is currently required from: Simon Buhrow, Nico Huber, Thomas Heijligen, Paul Menzel, Edward O'Callaghan.

Aarya has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/65879 )

Change subject: flashrom.c:Add function to get a flattened view of the chip erase blocks
......................................................................

Patch Set 56:

(5 comments)

File erasure_layout.c:

https://review.coreboot.org/c/flashrom/+/65879/comment/7706a14b_e51504f3 
PS54, Line 34: create_erase_layout
> with the comments below I am expecting a few static functions that should be relatively small and th […]

Done

https://review.coreboot.org/c/flashrom/+/65879/comment/7cc9557c_974cf765 
PS54, Line 74: block_num < block_count
> No, `block_num` increases.

Done

https://review.coreboot.org/c/flashrom/+/65879/comment/c14f5e2f_a5d0c621 
PS54, Line 86: (layout[layout_idx-1].layout_list[sub_block_index].start_addr >= start_addr &&
             : 						layout[layout_idx-1].layout_list[sub_block_index].end_addr <= end_addr &&
             : 						sub_block_index < layout[layout_idx-1].block_count)
> in this new function made out of this `if`-block turn this wild predicate into a intermediate with a […]

Done

File erasure_layout.c:

https://review.coreboot.org/c/flashrom/+/65879/comment/2f65a7a0_ff25c2ec 
PS55, Line 58: 		chipoff_t addr = 0;
             : 
             : 		for (int i = 0; addr < chip->total_size * 1024; i++) {
             : 			const struct eraseblock *block = &chip->block_erasers[eraser_idx].eraseblocks[i];
             : 			block_count += block->count;
             : 			addr += block->size * block->count;
             : 		}
>

Done

https://review.coreboot.org/c/flashrom/+/65879/comment/d64aa7e0_d678b46c 
PS55, Line 82: 				layout[layout_idx].layout_list[block_num].start_addr = start_addr;
             : 				layout[layout_idx].layout_list[block_num].end_addr = end_addr;
             : 				layout[layout_idx].layout_list[block_num].selected = false;
             : 				layout[layout_idx].layout_list[block_num].block_num = block_num;
             : 				if (layout_idx > 0) {
             : 					layout[layout_idx].layout_list[block_num].first_sub_block_index = sub_block_index;
             : 					while (layout[layout_idx-1].layout_list[sub_block_index].start_addr >= start_addr &&
             : 						layout[layout_idx-1].layout_list[sub_block_index].end_addr <= end_addr &&
             : 						sub_block_index < layout[layout_idx-1].block_count) {
             : 						sub_block_index++;
             : 					}
             : 					layout[layout_idx].layout_list[block_num].last_sub_block_index = sub_block_index - 1;
             : 				}
>

Done