2019-02-14 17:20:07

by Zhangshaokun

Subject: [PATCH] x86/mm/dump_pagetables: Remove the unused prev_pud variable

The 'prev_pud' local variable became unused after commit 04b67022fb6d
("x86/mm/dump_pagetables: Speed up page tables dump for CONFIG_KASAN=y"),
let's remove it.

Cc: Dave Hansen <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Signed-off-by: Shaokun Zhang <[email protected]>
---
arch/x86/mm/dump_pagetables.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index e3cdc85ce5b6..ee8f8ab46941 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -444,7 +444,6 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr,
int i;
pud_t *start, *pud_start;
pgprotval_t prot, eff;
- pud_t *prev_pud = NULL;

pud_start = start = (pud_t *)p4d_page_vaddr(addr);

@@ -462,7 +461,6 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr,
} else
note_page(m, st, __pgprot(0), 0, 3);

- prev_pud = start;
start++;
}
}
--
2.7.4

2019-02-15 00:53:19

by tip-bot for Vasyl Gomonovych

Subject: [tip:x86/cleanups] x86/mm/dump_pagetables: Remove the unused prev_pud variable

Commit-ID: 8e8a3cea7ea5f5458fdf2287713626892e7715f5
Gitweb: https://git.kernel.org/tip/8e8a3cea7ea5f5458fdf2287713626892e7715f5
Author: Shaokun Zhang <[email protected]>
AuthorDate: Thu, 14 Feb 2019 17:33:49 +0800
Committer: Borislav Petkov <[email protected]>
CommitDate: Thu, 14 Feb 2019 17:09:43 +0100

x86/mm/dump_pagetables: Remove the unused prev_pud variable

The 'prev_pud' local variable became unused after commit

04b67022fb6d ("x86/mm/dump_pagetables: Speed up page tables dump for CONFIG_KASAN=y").

Remove it.

Signed-off-by: Shaokun Zhang <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: x86-ml <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
---
arch/x86/mm/dump_pagetables.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index e3cdc85ce5b6..ee8f8ab46941 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -444,7 +444,6 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr,
int i;
pud_t *start, *pud_start;
pgprotval_t prot, eff;
- pud_t *prev_pud = NULL;

pud_start = start = (pud_t *)p4d_page_vaddr(addr);

@@ -462,7 +461,6 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr,
} else
note_page(m, st, __pgprot(0), 0, 3);

- prev_pud = start;
start++;
}
}