[S] Change in coreboot[main]: libpayload: Add dma_allocator_range()

[Yi Chou (Code Review)]

Attention is currently required from: Julius Werner, Paul Menzel, Yu-Ping Wu.

Yi Chou has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78407?usp=email )

Change subject: libpayload: Add dma_allocator_range()
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Patch Set 4:

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/78407/comment/7d1ac93b_c4af9d7e :
PS1, Line 7: dma_allocator_range
> Please add (), so it’s clear it’s a function.

Done

https://review.coreboot.org/c/coreboot/+/78407/comment/1c4d94c8_262eba59 :
PS1, Line 9: We will need this function to zero out everything allocated by the
           : dma allocator.
> Please elaborate. […]

Done

File payloads/libpayload/libc/malloc.c:

https://review.coreboot.org/c/coreboot/+/78407/comment/8a0165bc_06eee5fd :
PS1, Line 126: void dma_allocator_range(void **start_out, size_t *size_out)
             : {
             : 	if (dma_initialized()) {
             : 		*start_out = dma->start;
             : 		*size_out = dma->end - dma->start;
             : 	} else {
             : 		*start_out = NULL;
             : 		*size_out = 0;
             : 	}
             : }
> Please add a comment. […]

Done