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authorCatalin Marinas <catalin.marinas@arm.com>2014-12-05 12:34:54 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2016-08-18 12:38:11 +0100
commita93a4d62324123dcda383bdb4ab89151bbc0e499 (patch)
tree6b33d42b66ef7979d5388873d7dc36d6930e3d53
parentbc9f3d7788a88d080a30599bde68f383daf8f8a5 (diff)
arm64: Fix shift warning in arch/arm64/mm/dump.c
When building with 48-bit VAs and 16K page configuration, it's possible to get the following warning when building the arm64 page table dumping code: arch/arm64/mm/dump.c: In function ‘walk_pud’: arch/arm64/mm/dump.c:274:102: warning: right shift count >= width of type [-Wshift-count-overflow] This is because pud_offset(pgd, 0) performs a shift to the right by 36 while the value 0 has the type 'int' by default, therefore 32-bit. This patch modifies all the p*_offset() uses in arch/arm64/mm/dump.c to use 0UL for the address argument. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
-rw-r--r--arch/arm64/mm/dump.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c
index f94b80eb295d..9c3e75df2180 100644
--- a/arch/arm64/mm/dump.c
+++ b/arch/arm64/mm/dump.c
@@ -242,7 +242,7 @@ static void note_page(struct pg_state *st, unsigned long addr, unsigned level,
static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
{
- pte_t *pte = pte_offset_kernel(pmd, 0);
+ pte_t *pte = pte_offset_kernel(pmd, 0UL);
unsigned long addr;
unsigned i;
@@ -254,7 +254,7 @@ static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
{
- pmd_t *pmd = pmd_offset(pud, 0);
+ pmd_t *pmd = pmd_offset(pud, 0UL);
unsigned long addr;
unsigned i;
@@ -271,7 +271,7 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
{
- pud_t *pud = pud_offset(pgd, 0);
+ pud_t *pud = pud_offset(pgd, 0UL);
unsigned long addr;
unsigned i;