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From: Alexandre Ghiti <alex@ghiti.fr>
To: Jonathan Corbet <corbet@lwn.net>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>, Arnd Bergmann <arnd@arndb.de>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Alexander Potapenko <glider@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
	linux-arch@vger.kernel.org, linux-mm@kvack.org
Cc: Alexandre Ghiti <alex@ghiti.fr>
Subject: [PATCH] riscv: Remove 32b kernel mapping from page table dump
Date: Sun, 18 Apr 2021 07:28:56 -0400
Message-ID: <20210418112856.15078-1-alex@ghiti.fr> (raw)

The 32b kernel mapping lies in the linear mapping, there is no point in
printing its address in page table dump, so remove this leftover that
comes from moving the kernel mapping outside the linear mapping for 64b
kernel.

Fixes: e9efb21fe352 ("riscv: Prepare ptdump for vm layout dynamic addresses")
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
---
 arch/riscv/mm/ptdump.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c
index 0aba4421115c..a4ed4bdbbfde 100644
--- a/arch/riscv/mm/ptdump.c
+++ b/arch/riscv/mm/ptdump.c
@@ -76,8 +76,8 @@ enum address_markers_idx {
 	PAGE_OFFSET_NR,
 #ifdef CONFIG_64BIT
 	MODULES_MAPPING_NR,
-#endif
 	KERNEL_MAPPING_NR,
+#endif
 	END_OF_SPACE_NR
 };
 
@@ -99,8 +99,8 @@ static struct addr_marker address_markers[] = {
 	{0, "Linear mapping"},
 #ifdef CONFIG_64BIT
 	{0, "Modules mapping"},
-#endif
 	{0, "Kernel mapping (kernel, BPF)"},
+#endif
 	{-1, NULL},
 };
 
@@ -379,8 +379,8 @@ static int ptdump_init(void)
 	address_markers[PAGE_OFFSET_NR].start_address = PAGE_OFFSET;
 #ifdef CONFIG_64BIT
 	address_markers[MODULES_MAPPING_NR].start_address = MODULES_VADDR;
-#endif
 	address_markers[KERNEL_MAPPING_NR].start_address = kernel_virt_addr;
+#endif
 
 	kernel_ptd_info.base_addr = KERN_VIRT_START;
 
-- 
2.20.1


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Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-18 11:28 Alexandre Ghiti [this message]
2021-04-20  4:19 ` Anup Patel
2021-04-28  7:26   ` Alex Ghiti

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