linux-kernel - [PATCH 1/5] arm64: rename defer_reserve_crashkernel() to have_zone

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Date:   Fri, 19 Aug 2022 07:11:52 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Ard Biesheuvel <ardb@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Guanghui Feng <guanghuifeng@...ux.alibaba.com>,
        Mark Rutland <mark.rutland@....com>,
        Mike Rapoport <rppt@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Will Deacon <will@...nel.org>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: [PATCH 1/5] arm64: rename defer_reserve_crashkernel() to have_zone_dma()

From: Mike Rapoport <rppt@...ux.ibm.com>

The new name better describes what the function does and does not
restrict its use to crash kernel reservations.

Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
---
 arch/arm64/include/asm/memory.h | 2 +-
 arch/arm64/mm/init.c            | 4 ++--
 arch/arm64/mm/mmu.c             | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 9dd08cd339c3..27fce129b97e 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -364,7 +364,7 @@ static inline void *phys_to_virt(phys_addr_t x)
 
 void dump_mem_limit(void);
 
-static inline bool defer_reserve_crashkernel(void)
+static inline bool have_zone_dma(void)
 {
 	return IS_ENABLED(CONFIG_ZONE_DMA) || IS_ENABLED(CONFIG_ZONE_DMA32);
 }
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index b9af30be813e..a6585d50a76c 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -389,7 +389,7 @@ void __init arm64_memblock_init(void)
 
 	early_init_fdt_scan_reserved_mem();
 
-	if (!defer_reserve_crashkernel())
+	if (!have_zone_dma())
 		reserve_crashkernel();
 
 	high_memory = __va(memblock_end_of_DRAM() - 1) + 1;
@@ -438,7 +438,7 @@ void __init bootmem_init(void)
 	 * request_standard_resources() depends on crashkernel's memory being
 	 * reserved, so do it here.
 	 */
-	if (defer_reserve_crashkernel())
+	if (have_zone_dma())
 		reserve_crashkernel();
 
 	memblock_dump_all();
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index db7c4e6ae57b..bf303f1dea25 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -548,7 +548,7 @@ static void __init map_mem(pgd_t *pgdp)
 
 #ifdef CONFIG_KEXEC_CORE
 	if (crash_mem_map) {
-		if (defer_reserve_crashkernel())
+		if (have_zone_dma())
 			flags |= NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS;
 		else if (crashk_res.end)
 			memblock_mark_nomap(crashk_res.start,
@@ -589,7 +589,7 @@ static void __init map_mem(pgd_t *pgdp)
 	 * through /sys/kernel/kexec_crash_size interface.
 	 */
 #ifdef CONFIG_KEXEC_CORE
-	if (crash_mem_map && !defer_reserve_crashkernel()) {
+	if (crash_mem_map && !have_zone_dma()) {
 		if (crashk_res.end) {
 			__map_memblock(pgdp, crashk_res.start,
 				       crashk_res.end + 1,
-- 
2.35.3