mpc8xxx: fsl_pamu: Update data type in config_pamu

Message ID 20210205083111.804-1-priyanka.jain@nxp.com
State Accepted
Commit 43d1d391f6580a500659745343a6226c5034361e
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Series
  • mpc8xxx: fsl_pamu: Update data type in config_pamu
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Commit Message

Priyanka Jain Feb. 5, 2021, 8:31 a.m.
Update data type of '1' to '1ull' in below assignment
size = 1ull << sizebit;

to fix incorrect assignment issue.
e.g: when sizebit was 31, 0x80000000 got sign extended to
0xffffffff_80000000

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>

Reported-by: Dean Saridakis <dean.saridakis@baesystems.com>
---
 arch/powerpc/cpu/mpc8xxx/fsl_pamu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.17.1

Patch

diff --git a/arch/powerpc/cpu/mpc8xxx/fsl_pamu.c b/arch/powerpc/cpu/mpc8xxx/fsl_pamu.c
index 2c378b7615..5229949951 100644
--- a/arch/powerpc/cpu/mpc8xxx/fsl_pamu.c
+++ b/arch/powerpc/cpu/mpc8xxx/fsl_pamu.c
@@ -390,7 +390,7 @@  int config_pamu(struct pamu_addr_tbl *tbl, int num_entries, uint32_t liodn)
 		return -1;
 
 	sizebit = __ilog2_roundup_64(size);
-	size = 1 << sizebit;
+	size = 1ull << sizebit;
 	debug("min start_addr is %llx\n", min_addr);
 	debug("max end_addr is %llx\n", max_addr);
 	debug("size found is  %llx\n", size);