Addresses the following kernel logs seen during boot of sparc systems:
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Changed signature of cm_mask_copy from u8 to u32 as suggested by Jason
Gunthorpe.
Signed-off-by: David Ahern <david.ahern@xxxxxxxxxx>
---
v2
- updated per Jason's comments
drivers/infiniband/core/cm.c | 17 ++++++++---------
include/rdma/ib_cm.h | 4 ++--
2 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index e28a494e2a3a..cbbf741987b3 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -437,20 +437,19 @@ static struct cm_id_private * cm_acquire_id(__be32 local_id, __be32 remote_id)
return cm_id_priv;
}
-static void cm_mask_copy(u8 *dst, u8 *src, u8 *mask)
+static void cm_mask_copy(u32 *dst, u32 *src, u32 *mask)
{
int i;
- for (i = 0; i < IB_CM_COMPARE_SIZE / sizeof(unsigned long); i++)
- ((unsigned long *) dst)[i] = ((unsigned long *) src)[i] &
- ((unsigned long *) mask)[i];
+ for (i = 0; i < IB_CM_COMPARE_SIZE / sizeof(u32); i++)
+ dst[i] = src[i] & mask[i];
}
static int cm_compare_data(struct ib_cm_compare_data *src_data,
struct ib_cm_compare_data *dst_data)
{
- u8 src[IB_CM_COMPARE_SIZE];
- u8 dst[IB_CM_COMPARE_SIZE];
+ u32 src[IB_CM_COMPARE_SIZE];
+ u32 dst[IB_CM_COMPARE_SIZE];
if (!src_data || !dst_data)
return 0;
@@ -460,10 +459,10 @@ static int cm_compare_data(struct ib_cm_compare_data *src_data,
return memcmp(src, dst, IB_CM_COMPARE_SIZE);
}
-static int cm_compare_private_data(u8 *private_data,
+static int cm_compare_private_data(u32 *private_data,
struct ib_cm_compare_data *dst_data)
{
- u8 src[IB_CM_COMPARE_SIZE];
+ u32 src[IB_CM_COMPARE_SIZE];
if (!dst_data)
return 0;
@@ -546,7 +545,7 @@ static struct cm_id_private * cm_find_listen(struct ib_device *device,
while (node) {
cm_id_priv = rb_entry(node, struct cm_id_private, service_node);
- data_cmp = cm_compare_private_data(private_data,
+ data_cmp = cm_compare_private_data((u32 *) private_data,
cm_id_priv->compare_data);
if ((cm_id_priv->id.service_mask & service_id) ==
cm_id_priv->id.service_id &&
diff --git a/include/rdma/ib_cm.h b/include/rdma/ib_cm.h
index 0e3ff30647d5..0dd576f40c83 100644
--- a/include/rdma/ib_cm.h
+++ b/include/rdma/ib_cm.h
@@ -337,8 +337,8 @@ void ib_destroy_cm_id(struct ib_cm_id *cm_id);
#define IB_SDP_SERVICE_ID_MASK cpu_to_be64(0xFFFFFFFFFFFF0000ULL)
struct ib_cm_compare_data {
- u8 data[IB_CM_COMPARE_SIZE];
- u8 mask[IB_CM_COMPARE_SIZE];
+ u32 data[IB_CM_COMPARE_SIZE];
+ u32 mask[IB_CM_COMPARE_SIZE];
};
/**
--
2.3.0
--
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