On 32-bit builds, pgprotval_t can be either 32-bit or 64-bit wide depending
on the page table layout. In the latter case, we now get a build warning:
In file included from arch/x86/include/asm/bug.h:83,
from include/linux/bug.h:5,
from include/linux/crypto.h:23,
from arch/x86/kernel/asm-offsets.c:9:
arch/x86/include/asm/pgtable.h: In function 'check_pgprot':
arch/x86/include/asm/pgtable.h:536:5: error: format '%lx' expects argument of
type 'long unsigned int', but argument 2 has type 'pgprotval_t' {aka 'long long
unsigned int'} [-Werror=format=]
To work around the problem, we can always print the value as a u64,
and add the respective cast.
Fixes: 64c80759408f ("x86/mm: Do not auto-massage page protections")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
arch/x86/include/asm/pgtable.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 50b207289ae1..5f49b4ff0c24 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -533,11 +533,11 @@ static inline pgprotval_t check_pgprot(pgprot_t pgprot)
/* mmdebug.h can not be included here because of dependencies */
#ifdef CONFIG_DEBUG_VM
WARN_ONCE(pgprot_val(pgprot) != massaged_val,
- "attempted to set unsupported pgprot: %016lx "
- "bits: %016lx supported: %016lx\n",
- pgprot_val(pgprot),
- pgprot_val(pgprot) ^ massaged_val,
- __supported_pte_mask);
+ "attempted to set unsupported pgprot: %016llx "
+ "bits: %016llx supported: %016llx\n",
+ (u64)pgprot_val(pgprot),
+ (u64)pgprot_val(pgprot) ^ massaged_val,
+ (u64)__supported_pte_mask);
#endif
return massaged_val;
--
2.9.0
