Christian Borntraeger 832a771034 s390/debug: avoid function call for debug_sprintf_* ... debug_sprintf_event/exception are called even for debug events with a disabling debug level. All other functions already do the check in a wrapper function. Lets do the same here. Due to the var_args the compiler rejects to make this function inline. So let's wrap this via a macro. This patch saves around 80 ns on my z196 for a KVM round trip (we have two debug statements for entry and exit) when KVM is build as a module. The savings for built-in drivers is smaller as we then avoid the PLT overhead for a function call. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2014-12-08 09:42:29 +01:00
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asm	s390/debug: avoid function call for debug_sprintf_*	2014-12-08 09:42:29 +01:00
uapi/asm	s390/kernel: add system calls for PCI memory access	2014-11-19 09:46:43 +01:00