Re: [PATCH] mm/memblock: replace u64 with phys_addr_t where appropriate

From: Andrew Morton
Date: Tue Jul 03 2018 - 15:57:27 EST


On Tue, 3 Jul 2018 20:05:06 +0300 Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx> wrote:

> Most functions in memblock already use phys_addr_t to represent a physical
> address with __memblock_free_late() being an exception.
>
> This patch replaces u64 with phys_addr_t in __memblock_free_late() and
> switches several format strings from %llx to %pa to avoid casting from
> phys_addr_t to u64.
>
> ...
>
> @@ -1343,9 +1343,9 @@ void * __init memblock_virt_alloc_try_nid_raw(
> {
> void *ptr;
>
> - memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=0x%llx max_addr=0x%llx %pF\n",
> - __func__, (u64)size, (u64)align, nid, (u64)min_addr,
> - (u64)max_addr, (void *)_RET_IP_);
> + memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pF\n",
> + __func__, (u64)size, (u64)align, nid, &min_addr,
> + &max_addr, (void *)_RET_IP_);
>

Did you see all this checkpatch noise?

: WARNING: Deprecated vsprintf pointer extension '%pF' - use %pS instead
: #54: FILE: mm/memblock.c:1348:
: + memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pF\n",
: + __func__, (u64)size, (u64)align, nid, &min_addr,
: + &max_addr, (void *)_RET_IP_);
: ...
:

* - 'S' For symbolic direct pointers (or function descriptors) with offset
* - 's' For symbolic direct pointers (or function descriptors) without offset
* - 'F' Same as 'S'
* - 'f' Same as 's'

I'm not sure why or when all that happened.

I suppose we should do that as a separate patch sometime.