linux/scripts/coccinelle/api/resource_size.cocci
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   1///
   2/// Use resource_size function on resource object
   3/// instead of explicit computation.
   4///
   5//  Confidence: High
   6//  Copyright: (C) 2009, 2010 Nicolas Palix, DIKU.  GPLv2.
   7//  Copyright: (C) 2009, 2010 Julia Lawall, DIKU.  GPLv2.
   8//  Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
   9//  URL: http://coccinelle.lip6.fr/
  10//  Options:
  11//
  12//  Keywords: resource_size
  13//  Version min: 2.6.27 resource_size
  14//
  15
  16virtual context
  17virtual patch
  18virtual org
  19virtual report
  20
  21//----------------------------------------------------------
  22//  For context mode
  23//----------------------------------------------------------
  24
  25@r_context depends on context && !patch && !org@
  26struct resource *res;
  27@@
  28
  29* (res->end - res->start) + 1
  30
  31//----------------------------------------------------------
  32//  For patch mode
  33//----------------------------------------------------------
  34
  35@r_patch depends on !context && patch && !org@
  36struct resource *res;
  37@@
  38
  39- (res->end - res->start) + 1
  40+ resource_size(res)
  41
  42//----------------------------------------------------------
  43//  For org mode
  44//----------------------------------------------------------
  45
  46
  47@r_org depends on !context && !patch && (org || report)@
  48struct resource *res;
  49position p;
  50@@
  51
  52 (res->end@p - res->start) + 1
  53
  54@rbad_org depends on !context && !patch && (org || report)@
  55struct resource *res;
  56position p != r_org.p;
  57@@
  58
  59 res->end@p - res->start
  60
  61@script:python depends on org@
  62p << r_org.p;
  63x << r_org.res;
  64@@
  65
  66msg="ERROR with %s" % (x)
  67msg_safe=msg.replace("[","@(").replace("]",")")
  68coccilib.org.print_todo(p[0], msg_safe)
  69
  70@script:python depends on report@
  71p << r_org.p;
  72x << r_org.res;
  73@@
  74
  75msg="ERROR: Missing resource_size with %s" % (x)
  76coccilib.report.print_report(p[0], msg)
  77
  78@script:python depends on org@
  79p << rbad_org.p;
  80x << rbad_org.res;
  81@@
  82
  83msg="WARNING with %s" % (x)
  84msg_safe=msg.replace("[","@(").replace("]",")")
  85coccilib.org.print_todo(p[0], msg_safe)
  86
  87@script:python depends on report@
  88p << rbad_org.p;
  89x << rbad_org.res;
  90@@
  91
  92msg="WARNING: Suspicious code. resource_size is maybe missing with %s" % (x)
  93coccilib.report.print_report(p[0], msg)
  94