From: Jiri Pirko <j...@mellanox.com>
Sometimes it is handy to get a pointer to a char buffer item and use it
direcly to write/read data. So add these helpers.
Signed-off-by: Jiri Pirko <j...@mellanox.com>
Reviewed-by: Ido Schimmel <ido...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/item.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/item.h
b/drivers/net/ethernet/mellanox/mlxsw/item.h
index 09f35de..28427f0 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/item.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/item.h
@@ -225,6 +225,14 @@ static inline void __mlxsw_item_memcpy_to(char *buf, const
char *src,
memcpy(&buf[offset], src, item->size.bytes);
}
+static inline char *__mlxsw_item_data(char *buf, const struct mlxsw_item *item,
+ unsigned short index)
+{
+ unsigned int offset = __mlxsw_item_offset(item, index, sizeof(char));
+
+ return &buf[offset];
+}
+
static inline u16
__mlxsw_item_bit_array_offset(const struct mlxsw_item *item,
u16 index, u8 *shift)
@@ -468,6 +476,11 @@ mlxsw_##_type##_##_cname##_##_iname##_memcpy_to(char *buf,
const char *src) \
{
\
__mlxsw_item_memcpy_to(buf, src,
\
&__ITEM_NAME(_type, _cname, _iname), 0);
\
+}
\
+static inline char *
\
+mlxsw_##_type##_##_cname##_##_iname##_data(char *buf)
\
+{
\
+ return __mlxsw_item_data(buf, &__ITEM_NAME(_type, _cname, _iname), 0);
\
}
#define MLXSW_ITEM_BUF_INDEXED(_type, _cname, _iname, _offset, _sizebytes,
\
@@ -494,6 +507,12 @@ mlxsw_##_type##_##_cname##_##_iname##_memcpy_to(char *buf,
\
{
\
__mlxsw_item_memcpy_to(buf, src,
\
&__ITEM_NAME(_type, _cname, _iname), index);
\
+}
\
+static inline char *
\
+mlxsw_##_type##_##_cname##_##_iname##_data(char *buf, unsigned short index)
\
+{
\
+ return __mlxsw_item_data(buf,
\
+ &__ITEM_NAME(_type, _cname, _iname), index);
\
}
#define MLXSW_ITEM_BIT_ARRAY(_type, _cname, _iname, _offset, _sizebytes,
\
--
2.7.4
