| 093758e3daede29cb4ce6aedb111becf9d4bfc57 |
|
04-Aug-2014 |
Andrey Utkin <andrey.krieger.utkin@gmail.com> |
arch/sparc/math-emu/math_32.c: drop stray break operator
This commit is a guesswork, but it seems to make sense to drop this
break, as otherwise the following line is never executed and becomes
dead code. And that following line actually saves the result of
local calculation by the pointer given in function argument. So the
proposed change makes sense if this code in the whole makes sense (but I
am unable to analyze it in the whole).
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81641
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| a8b0ca17b80e92faab46ee7179ba9e99ccb61233 |
|
27-Jun-2011 |
Peter Zijlstra <a.p.zijlstra@chello.nl> |
perf: Remove the nmi parameter from the swevent and overflow interface
The nmi parameter indicated if we could do wakeups from the current
context, if not, we would set some state and self-IPI and let the
resulting interrupt do the wakeup.
For the various event classes:
- hardware: nmi=0; PMI is in fact an NMI or we run irq_work_run from
the PMI-tail (ARM etc.)
- tracepoint: nmi=0; since tracepoint could be from NMI context.
- software: nmi=[0,1]; some, like the schedule thing cannot
perform wakeups, and hence need 0.
As one can see, there is very little nmi=1 usage, and the down-side of
not using it is that on some platforms some software events can have a
jiffy delay in wakeup (when arch_irq_work_raise isn't implemented).
The up-side however is that we can remove the nmi parameter and save a
bunch of conditionals in fast paths.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Michael Cree <mcree@orcon.net.nz>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Eric B Munson <emunson@mgebm.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Don Zickus <dzickus@redhat.com>
Link: http://lkml.kernel.org/n/tip-agjev8eu666tvknpb3iaj0fg@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|
| 121dd5f2776522e03970916514b46e355480e538 |
|
11-Dec-2009 |
David S. Miller <davem@davemloft.net> |
sparc: Add alignment and emulation fault perf events.
This mirrors commit 196f02bf900c5eb6f85d889c4f70e7cc11fda7e8
(powerpc: perf_event: Add alignment-faults and emulation-faults software events)
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 774434bf33bdc876c2818eba34e416fe1fc7a746 |
|
17-Nov-2008 |
Sam Ravnborg <sam@ravnborg.org> |
sparc: prepare math-emu for unification
Add _32 to filenames to make them 32 bit unique
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|