This was detected by smatch as one "else if" statement could never be
reached. Confirmed bit order by comparing with python implementation [1].
drivers/iommu/apple-dart.c:991 apple_dart_t8110_irq()
warn: duplicate check 'error_code == ((((1))) << (3))'
(previous on line 989)
Link: https://github.com/AsahiLinux/m1n1/commit/96b2d584feec1e3f7bfa [1]
Fixes: d8bcc870d99d ("iommu: dart: Add t8110 DART support")
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Eric Curtin <[email protected]
---
Changes in v2: Remove DART_T8110_ERROR_ADDR_HI change
---
drivers/iommu/apple-dart.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
index 42666617803d..fd09abe8d29e 100644
--- a/drivers/iommu/apple-dart.c
+++ b/drivers/iommu/apple-dart.c
@@ -111,8 +111,8 @@
#define DART_T8110_ERROR_MASK 0x104
-#define DART_T8110_ERROR_READ_FAULT BIT(4)
-#define DART_T8110_ERROR_WRITE_FAULT BIT(3)
+#define DART_T8110_ERROR_READ_FAULT BIT(5)
+#define DART_T8110_ERROR_WRITE_FAULT BIT(4)
#define DART_T8110_ERROR_NO_PTE BIT(3)
#define DART_T8110_ERROR_NO_PMD BIT(2)
#define DART_T8110_ERROR_NO_PGD BIT(1)
--
2.39.1
Hi,
On Wed, Feb 1, 2023, at 13:42, Eric Curtin wrote:
> This was detected by smatch as one "else if" statement could never be
> reached. Confirmed bit order by comparing with python implementation [1].
>
> drivers/iommu/apple-dart.c:991 apple_dart_t8110_irq()
> warn: duplicate check 'error_code == ((((1))) << (3))'
> (previous on line 989)
>
> Link: https://github.com/AsahiLinux/m1n1/commit/96b2d584feec1e3f7bfa [1]
>
> Fixes: d8bcc870d99d ("iommu: dart: Add t8110 DART support")
> Reported-by: Dan Carpenter <[email protected]>
> Signed-off-by: Eric Curtin <[email protected]
You're missing a ">" here but I hope Joerg can fix that when
merging it!
> ---
> Changes in v2: Remove DART_T8110_ERROR_ADDR_HI change
> ---
Reviewed-by: Sven Peter <[email protected]>
Thanks,
Sven
On Wed, Feb 01, 2023 at 12:42:58PM +0000, Eric Curtin wrote:
> This was detected by smatch as one "else if" statement could never be
> reached. Confirmed bit order by comparing with python implementation [1].
>
> drivers/iommu/apple-dart.c:991 apple_dart_t8110_irq()
> warn: duplicate check 'error_code == ((((1))) << (3))'
> (previous on line 989)
>
> Link: https://github.com/AsahiLinux/m1n1/commit/96b2d584feec1e3f7bfa [1]
>
> Fixes: d8bcc870d99d ("iommu: dart: Add t8110 DART support")
> Reported-by: Dan Carpenter <[email protected]>
> Signed-off-by: Eric Curtin <[email protected]
Missing char ^
Fixed that and applied the patch, thanks. Please use checkpatch next
time.
Regards,
Joerg