[PATCH 0/2 v2] Add cond_guard() to conditional guards

[Fabio M. De Francesco]

Add cond_guard() macro to conditional guards and use it to replace an
open-coded up_read() in show_targetN() and remove a block marked by an
'out' label.

Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Suggested-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Suggested-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Fabio M. De Francesco <fabio.maria.de.francesco@xxxxxxxxxxxxxxx>
---

Changes from RFC v4:
	Changed the interface of cond_guard() to take a variable to store
	a return code, the succes code and failure code, to enable a
	later check of the returned code in that variable.
Changes from RFC v5:
	Changed the interface of cond_guard() to take one or more statements
	in its second argument to conform to Dan's final suggestion
	(thanks).
Changes from v1:
	Fixed a grammar error in the commit message of 1/2; replaced the
	name of the second argument of cond_guard() with '_fail'
	according to Jonathan's comments (thanks). 

Fabio M. De Francesco (2):
  cleanup: Add cond_guard() to conditional guards
  cxl/region: Use cond_guard() in show_targetN()

 drivers/cxl/core/region.c | 16 ++++------------
 include/linux/cleanup.h   | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 12 deletions(-)

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2.43.0