[PATCH v2 05/21] memblock: emphasize that memblock_alloc_range() returns a physical address

From: Mike Rapoport <rppt@linux.ibm.com>
To: linux-mm@kvack.org
Cc: Rich Felker <dalias@libc.org>,
	linux-ia64@vger.kernel.org, devicetree@vger.kernel.org,
	Catalin Marinas <catalin.marinas@arm.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	x86@kernel.org, linux-mips@vger.kernel.org,
	Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
	sparclinux@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Richard Weinberger <richard@nod.at>,
	linux-sh@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
	kasan-dev@googlegroups.com, Mike Rapoport <rppt@linux.ibm.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Mark Salter <msalter@redhat.com>, Dennis Zhou <dennis@kernel.org>,
	Matt Turner <mattst88@gmail.com>,
	linux-snps-arc@lists.infradead.org,
	uclinux-h8-devel@lists.sourceforge.jp,
	Petr Mladek <pmladek@suse.com>,
	linux-xtensa@linux-xtensa.org, linux-alpha@vger.kernel.org,
	linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org,
	Rob Herring <robh+dt@kernel.org>,
	Greentime Hu <green.hu@gmail.com>,
	xen-devel@lists.xenproject.org, Stafford Horne <shorne@gmail.com>,
	Guan Xuetao <gxt@pku.edu.cn>,
	linux-arm-kernel@lists.infradead.org,
	Michal Simek <monstr@monstr.eu>, Tony Luck <tony.luck@intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	Paul Burton <paul.burton@mips.com>,
	Vineet Gupta <vgupta@synopsys.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org,
	"David S. Miller" <davem@davemloft.net>,
	openrisc@lists.librecores.org
Subject: [PATCH v2 05/21] memblock: emphasize that memblock_alloc_range() returns a physical address
Date: Mon, 21 Jan 2019 08:03:52 +0000	[thread overview]
Message-ID: <1548057848-15136-6-git-send-email-rppt@linux.ibm.com> (raw)
In-Reply-To: <1548057848-15136-1-git-send-email-rppt@linux.ibm.com>

Rename memblock_alloc_range() to memblock_phys_alloc_range() to emphasize
that it returns a physical address.
While on it, remove the 'enum memblock_flags' parameter from this function
as its only user anyway sets it to MEMBLOCK_NONE, which is the default for
the most of memblock allocations.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 include/linux/memblock.h |  5 ++---
 mm/cma.c                 | 10 ++++------
 mm/memblock.c            |  9 +++++----
 3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index f7ef313..66dfdb3 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -369,6 +369,8 @@ static inline int memblock_get_region_node(const struct memblock_region *r)
 #define ARCH_LOW_ADDRESS_LIMIT  0xffffffffUL
 #endif
 
+phys_addr_t memblock_phys_alloc_range(phys_addr_t size, phys_addr_t align,
+				      phys_addr_t start, phys_addr_t end);
 phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
 phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
 
@@ -487,9 +489,6 @@ static inline bool memblock_bottom_up(void)
 	return memblock.bottom_up;
 }
 
-phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
-					phys_addr_t start, phys_addr_t end,
-					enum memblock_flags flags);
 phys_addr_t memblock_alloc_base(phys_addr_t size, phys_addr_t align,
 				phys_addr_t max_addr);
 phys_addr_t __memblock_alloc_base(phys_addr_t size, phys_addr_t align,
diff --git a/mm/cma.c b/mm/cma.c
index c7b39dd..e4530ae 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -327,16 +327,14 @@ int __init cma_declare_contiguous(phys_addr_t base,
 		 * memory in case of failure.
 		 */
 		if (base < highmem_start && limit > highmem_start) {
-			addr = memblock_alloc_range(size, alignment,
-						    highmem_start, limit,
-						    MEMBLOCK_NONE);
+			addr = memblock_phys_alloc_range(size, alignment,
+							 highmem_start, limit);
 			limit = highmem_start;
 		}
 
 		if (!addr) {
-			addr = memblock_alloc_range(size, alignment, base,
-						    limit,
-						    MEMBLOCK_NONE);
+			addr = memblock_phys_alloc_range(size, alignment, base,
+							 limit);
 			if (!addr) {
 				ret = -ENOMEM;
 				goto err;
diff --git a/mm/memblock.c b/mm/memblock.c
index c80029e..f019aee 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1338,12 +1338,13 @@ static phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size,
 	return 0;
 }
 
-phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
-					phys_addr_t start, phys_addr_t end,
-					enum memblock_flags flags)
+phys_addr_t __init memblock_phys_alloc_range(phys_addr_t size,
+					     phys_addr_t align,
+					     phys_addr_t start,
+					     phys_addr_t end)
 {
 	return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE,
-					flags);
+					MEMBLOCK_NONE);
 }
 
 phys_addr_t __init memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid)
-- 
2.7.4
