perf/x86/intel: Simplify the dynamic constraint code somewhat
authorPeter Zijlstra <peterz@infradead.org>
Thu, 21 May 2015 08:57:24 +0000 (10:57 +0200)
committerIngo Molnar <mingo@kernel.org>
Wed, 27 May 2015 07:17:43 +0000 (09:17 +0200)
commitaaf932e8161e45291cc85085b6d850f1bbdf53c8
tree463268ffdddee2efed13e32d822ab90450353f73
parentb32ed7f5de262b10633bb6c6dbb7f8ba46598cf4
perf/x86/intel: Simplify the dynamic constraint code somewhat

We have two 'struct event_constraint' local variables in
intel_get_excl_constraints(): 'cx' and 'c'.

Instead of using 'cx' after the dynamic allocation, put all 'cx' inside
the dynamic allocation block and use 'c' outside of it.

Also use direct assignment to copy the structure; let the compiler
figure it out.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/kernel/cpu/perf_event_intel.c