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net: ibm: emac: remove unused sysrq handler for 'c' key

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Since commit d6580a9f15 ("kexec: sysrq: simplify sysrq-c handler"),
the sysrq handler for the 'c' key has been sysrq_crash_op.  Debugging
code in the ibm_emac driver also tries to register a handler for the 'c'
key, but this has no effect because register_sysrq_key() doesn't replace
existing handlers.  Since evidently no one has cared enough to fix this
in the last 8 years, and it's very rare for drivers to register sysrq
handlers (for good reason), just remove the dead code.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Biggers
2017-04-03 22:50:20 -07:00
committed by David S. Miller
parent 3f3c278c94
commit 5e35141066
6 changed files with 1 additions and 306 deletions
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23
drivers/net/ethernet/ibm/emac/debug.h
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@@ -25,32 +25,9 @@
#include "core.h"
#if defined(CONFIG_IBM_EMAC_DEBUG)
struct emac_instance;
struct mal_instance;
void emac_dbg_register(struct emac_instance *dev);
void emac_dbg_unregister(struct emac_instance *dev);
void mal_dbg_register(struct mal_instance *mal);
void mal_dbg_unregister(struct mal_instance *mal);
int emac_init_debug(void) __init;
void emac_fini_debug(void) __exit;
void emac_dbg_dump_all(void);
# define DBG_LEVEL 1
#else
# define emac_dbg_register(x) do { } while(0)
# define emac_dbg_unregister(x) do { } while(0)
# define mal_dbg_register(x) do { } while(0)
# define mal_dbg_unregister(x) do { } while(0)
# define emac_init_debug() do { } while(0)
# define emac_fini_debug() do { } while(0)
# define emac_dbg_dump_all() do { } while(0)
# define DBG_LEVEL 0
#endif
#define EMAC_DBG(d, name, fmt, arg...) \