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Message-Id: <1455930799-5371-2-git-send-email-ddaney.cavm@gmail.com>
Date: Fri, 19 Feb 2016 17:13:10 -0800
From: David Daney <ddaney.cavm@...il.com>
To: Will Deacon <will.deacon@....com>,
linux-arm-kernel@...ts.infradead.org,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
Frank Rowand <frowand.list@...il.com>,
Grant Likely <grant.likely@...aro.org>,
Catalin Marinas <catalin.marinas@....com>,
Matt Fleming <matt@...eblueprint.co.uk>,
linux-efi@...r.kernel.org,
Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>,
Robert Richter <rrichter@...ium.com>
Cc: linux-kernel@...r.kernel.org, David Daney <david.daney@...ium.com>
Subject: [PATCH v11 01/10] of/fdt: make generic early_init_dt_add_memory_arch() a weak alias
From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
The function early_init_dt_add_memory_arch() is defined as __weak
so that archs can override it. However, in this override implementation,
it may still be useful to invoke the generic implementation, so instead,
rename the generic version to early_init_dt_add_memory() and turn the
original definition into a weak alias. This way, the generic version can
still be called even in the presence of an arch specific override.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Signed-off-by: Robert Richter <rrichter@...ium.com>
Signed-off-by: David Daney <david.daney@...ium.com>
---
drivers/of/fdt.c | 7 +++++--
include/linux/of_fdt.h | 1 +
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 655f79d..cba8281 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -980,7 +980,7 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
#define MAX_MEMBLOCK_ADDR ((phys_addr_t)~0)
#endif
-void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
+void __init early_init_dt_add_memory(u64 base, u64 size)
{
const u64 phys_offset = __pa(PAGE_OFFSET);
@@ -1038,7 +1038,7 @@ void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align)
return __va(memblock_alloc(size, align));
}
#else
-void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
+void __init early_init_dt_add_memory(u64 base, u64 size)
{
WARN_ON(1);
}
@@ -1058,6 +1058,9 @@ void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align)
}
#endif
+__weak __alias(early_init_dt_add_memory)
+void early_init_dt_add_memory_arch(u64 base, u64 size);
+
bool __init early_init_dt_verify(void *params)
{
if (!params)
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index df9ef38..463a06b 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -65,6 +65,7 @@ extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
int depth, void *data);
extern void early_init_fdt_scan_reserved_mem(void);
extern void early_init_fdt_reserve_self(void);
+extern void early_init_dt_add_memory(u64 base, u64 size);
extern void early_init_dt_add_memory_arch(u64 base, u64 size);
extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
bool no_map);
--
1.8.3.1
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