RDMA/core: Introduce RDMA subsystem ibdev_* print functions

Similarly to dev/netdev/etc printk helpers, add standard printk helpers
for the RDMA subsystem.

Example output:
efa 0000:00:06.0 efa_0: Hello World!
efa_0: Hello World! (no parent device set)
(NULL ib_device): Hello World! (ibdev is NULL)

Cc: Jason Baron <jbaron@akamai.com>
Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Suggested-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index c2be029b9b53..6c809440f319 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -71,6 +71,13 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor,
                           const struct net_device *dev,
                           const char *fmt, ...);
 
+struct ib_device;
+
+extern __printf(3, 4)
+void __dynamic_ibdev_dbg(struct _ddebug *descriptor,
+                         const struct ib_device *ibdev,
+                         const char *fmt, ...);
+
 #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt)                \
         static struct _ddebug  __aligned(8)                     \
         __attribute__((section("__verbose"))) name = {          \
@@ -154,6 +161,10 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor,
         _dynamic_func_call(fmt, __dynamic_netdev_dbg,           \
                            dev, fmt, ##__VA_ARGS__)
 
+#define dynamic_ibdev_dbg(dev, fmt, ...)                        \
+        _dynamic_func_call(fmt, __dynamic_ibdev_dbg,            \
+                           dev, fmt, ##__VA_ARGS__)
+
 #define dynamic_hex_dump(prefix_str, prefix_type, rowsize,              \
                          groupsize, buf, len, ascii)                    \
         _dynamic_func_call_no_desc(__builtin_constant_p(prefix_str) ? prefix_str : "hexdump", \