From: Mark Rutland <mark.rutland@arm.com>
Date: Tue, 28 Jul 2015 09:31:06 +0000 (+0100)
Subject: arm64: mm: mark create_mapping as __init
X-Git-Tag: v4.3-rc1~84^2~26
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c53e0baa6f34b7051790e0fba9d782ec4efe58bd;p=linux.git

arm64: mm: mark create_mapping as __init

Currently create_mapping is marked with __ref, apparently because it
refers to early_alloc. However, create_mapping has no logic to prevent
erroneous use of early_alloc after it has been freed, and is only ever
called by __init functions anyway. Thus the __ref marker is misleading
and unnecessary.

Instead, this patch marks create_mapping as __init, resulting in
warnings if it is used from a a non __init functions, and allowing its
memory to be reclaimed.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 63012fed46fc..9211b8527f25 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -267,7 +267,7 @@ static void *late_alloc(unsigned long size)
 	return ptr;
 }
 
-static void __ref create_mapping(phys_addr_t phys, unsigned long virt,
+static void __init create_mapping(phys_addr_t phys, unsigned long virt,
 				  phys_addr_t size, pgprot_t prot)
 {
 	if (virt < VMALLOC_START) {