+ mm-early_ioremap-declare-early_memremap_pgprot_adjust.patch added to -mm tree

+ mm-early_ioremap-declare-early_memremap_pgprot_adjust.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: mm/early_ioremap: declare early_memremap_pgprot_adjust()
has been added to the -mm tree.  Its filename is
     mm-early_ioremap-declare-early_memremap_pgprot_adjust.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-early_ioremap-declare-early_memremap_pgprot_adjust.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-early_ioremap-declare-early_memremap_pgprot_adjust.patch

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------------------------------------------------------
From: Vlastimil Babka <vbabka@suse.cz>
Subject: mm/early_ioremap: declare early_memremap_pgprot_adjust()

The mm/ directory can almost fully be built with W=1, which would help in
local development.  One remaining issue is missing prototype for
early_memremap_pgprot_adjust().

Thus add a declaration for this function.  Use mm/internal.h instead of
asm/early_ioremap.h to avoid missing type definitions and unnecessary
exposure.

Link: https://lkml.kernel.org/r/20220314165724.16071-2-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/early_ioremap.c |    1 +
 mm/internal.h      |    6 ++++++
 2 files changed, 7 insertions(+)

--- a/mm/early_ioremap.c~mm-early_ioremap-declare-early_memremap_pgprot_adjust
+++ a/mm/early_ioremap.c
@@ -17,6 +17,7 @@
 #include <linux/vmalloc.h>
 #include <asm/fixmap.h>
 #include <asm/early_ioremap.h>
+#include "internal.h"
 
 #ifdef CONFIG_MMU
 static int early_ioremap_debug __initdata;
--- a/mm/internal.h~mm-early_ioremap-declare-early_memremap_pgprot_adjust
+++ a/mm/internal.h
@@ -155,6 +155,12 @@ extern unsigned long highest_memmap_pfn;
 #define MAX_RECLAIM_RETRIES 16
 
 /*
+ * in mm/early_ioremap.c
+ */
+pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr,
+					unsigned long size, pgprot_t prot);
+
+/*
  * in mm/vmscan.c:
  */
 extern int isolate_lru_page(struct page *page);
_

Patches currently in -mm which might be from vbabka@suse.cz are

mm-fault-injection-declare-should_fail_alloc_page.patch
mm-early_ioremap-declare-early_memremap_pgprot_adjust.patch