| From 0ec139b79d62ec7328390a6bacb96ce2c9fbd8f0 Mon Sep 17 00:00:00 2001 |
| From: Christophe Leroy <christophe.leroy@c-s.fr> |
| Date: Wed, 14 Aug 2019 12:36:09 +0000 |
| Subject: [PATCH] powerpc/ptdump: Fix addresses display on PPC32 |
| |
| commit 7c7a532ba3fc51bf9527d191fb410786c1fdc73c upstream. |
| |
| Commit 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot") |
| wrongly changed KERN_VIRT_START from 0 to PAGE_OFFSET, leading to a |
| shift in the displayed addresses. |
| |
| Lets revert that change to resync walk_pagetables()'s addr val and |
| pgd_t pointer for PPC32. |
| |
| Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot") |
| Cc: stable@vger.kernel.org # v5.2+ |
| Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> |
| Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
| Link: https://lore.kernel.org/r/eb4d626514e22f85814830012642329018ef6af9.1565786091.git.christophe.leroy@c-s.fr |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c |
| index 39bf1e2cba13..b69912854dc3 100644 |
| --- a/arch/powerpc/mm/ptdump/ptdump.c |
| +++ b/arch/powerpc/mm/ptdump/ptdump.c |
| @@ -27,7 +27,7 @@ |
| #include "ptdump.h" |
| |
| #ifdef CONFIG_PPC32 |
| -#define KERN_VIRT_START PAGE_OFFSET |
| +#define KERN_VIRT_START 0 |
| #endif |
| |
| /* |
| -- |
| 2.7.4 |
| |
