firewire: core: clean up config ROM related defined constants

Clemens Ladisch pointed out that
  - BIB_IMC is not named like the field is called in the standard,
  - readers of the code may get worried about the magic 0x0c0083c0,
  - a CSR_NODE_CAPABILITIES key is there in the header but not put to
    good use.

So let's rename BIB_IMC, add a defined constant for Node_Capabilities
and a comment which reassures people that somebody thought about it and
they don't have to (or if they still do, tell them where they have to
look for confirmation), and prune our incomplete and arbitrary set of
defined constants of CSR key IDs.  And there is a nother magic number,
that of Bus_Information_Block.Bus_Name, to be defined and commented.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 0 insertions, 2 deletions

diff --git a/include/linux/firewire.h b/include/linux/firewire.h
index 4bd94bf5e739..a527d73f9966 100644
--- a/include/linux/firewire.h
+++ b/include/linux/firewire.h
@@ -55,13 +55,11 @@
 #define CSR_DESCRIPTOR          0x01
 #define CSR_VENDOR              0x03
 #define CSR_HARDWARE_VERSION    0x04
-#define CSR_NODE_CAPABILITIES   0x0c
 #define CSR_UNIT                0x11
 #define CSR_SPECIFIER_ID        0x12
 #define CSR_VERSION             0x13
 #define CSR_DEPENDENT_INFO      0x14
 #define CSR_MODEL               0x17
-#define CSR_INSTANCE            0x18
 #define CSR_DIRECTORY_ID        0x20
 
 struct fw_csr_iterator {