diff options
| author |   Dave Wallace <dwallacelf@gmail.com> | 2017-10-24 01:32:41 -0400 |
|---|---|---|
| committer | Dave Wallace <dwallacelf@gmail.com> | 2017-10-24 01:32:41 -0400 |
| commit | 71612d61930e57e7c8ebf9e5647b15a4b23720b2 (patch) | |
| tree | 3c135af6d40442f5ae9f8397c62080e2b7e3f342 /src/vnet/devices/af_packet/af_packet.h | |
| parent | 92b0275a364022af6ab828dfac83e38c0117cfe6 (diff) | |
Add extern to *_main global variable declarations in header files.
- Global variables declared in header files without
the use of the 'extern' keword will result in multiple
instances of the variable to be created by the compiler
-- one for each different source file in which the
the header file is included. This results in wasted
memory allocated in the BSS segments as well as
potentially introducing bugs in the application.
Change-Id: I6ef1790b60a0bd9dd3994f8510723decf258b0cc
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Diffstat (limited to 'src/vnet/devices/af_packet/af_packet.h')
| -rw-r--r-- | src/vnet/devices/af_packet/af_packet.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vnet/devices/af_packet/af_packet.h b/src/vnet/devices/af_packet/af_packet.h index 66e2dea5169..b095e7ffcd1 100644 --- a/src/vnet/devices/af_packet/af_packet.h +++ b/src/vnet/devices/af_packet/af_packet.h @@ -56,7 +56,7 @@ typedef struct mhash_t if_index_by_host_if_name; } af_packet_main_t; -af_packet_main_t af_packet_main; +extern af_packet_main_t af_packet_main; extern vnet_device_class_t af_packet_device_class; extern vlib_node_registration_t af_packet_input_node; |