linux_dsm_epyc7002/scripts/coccinelle/api/atomic_as_refcounter.cocci
Matthias Maennich ef349abd91 coccinelle: api/atomic_as_refcounter: add SPDX License Identifier
Add the missing GPLv2 SPDX license identifier.

It appears this single file was missing from 7f904d7e1f ("treewide:
Replace GPLv2 boilerplate/reference with SPDX - rule 505"), which
addressed all other files in scripts/coccinelle. Hence I added
GPL-2.0-only consitently with the mentioned patch.

Cc: linux-spdx@vger.kernel.org
Cc: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-30 18:34:15 +02:00

131 lines
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// SPDX-License-Identifier: GPL-2.0-only
// Check if refcount_t type and API should be used
// instead of atomic_t type when dealing with refcounters
//
// Copyright (c) 2016-2017, Elena Reshetova, Intel Corporation
//
// Confidence: Moderate
// URL: http://coccinelle.lip6.fr/
// Options: --include-headers --very-quiet
virtual report
@r1 exists@
identifier a, x;
position p1, p2;
identifier fname =~ ".*free.*";
identifier fname2 =~ ".*destroy.*";
identifier fname3 =~ ".*del.*";
identifier fname4 =~ ".*queue_work.*";
identifier fname5 =~ ".*schedule_work.*";
identifier fname6 =~ ".*call_rcu.*";
@@
(
atomic_dec_and_test@p1(&(a)->x)
|
atomic_dec_and_lock@p1(&(a)->x, ...)
|
atomic_long_dec_and_lock@p1(&(a)->x, ...)
|
atomic_long_dec_and_test@p1(&(a)->x)
|
atomic64_dec_and_test@p1(&(a)->x)
|
local_dec_and_test@p1(&(a)->x)
)
...
(
fname@p2(a, ...);
|
fname2@p2(...);
|
fname3@p2(...);
|
fname4@p2(...);
|
fname5@p2(...);
|
fname6@p2(...);
)
@script:python depends on report@
p1 << r1.p1;
p2 << r1.p2;
@@
msg = "atomic_dec_and_test variation before object free at line %s."
coccilib.report.print_report(p1[0], msg % (p2[0].line))
@r4 exists@
identifier a, x, y;
position p1, p2;
identifier fname =~ ".*free.*";
@@
(
atomic_dec_and_test@p1(&(a)->x)
|
atomic_dec_and_lock@p1(&(a)->x, ...)
|
atomic_long_dec_and_lock@p1(&(a)->x, ...)
|
atomic_long_dec_and_test@p1(&(a)->x)
|
atomic64_dec_and_test@p1(&(a)->x)
|
local_dec_and_test@p1(&(a)->x)
)
...
y=a
...
fname@p2(y, ...);
@script:python depends on report@
p1 << r4.p1;
p2 << r4.p2;
@@
msg = "atomic_dec_and_test variation before object free at line %s."
coccilib.report.print_report(p1[0], msg % (p2[0].line))
@r2 exists@
identifier a, x;
position p1;
@@
(
atomic_add_unless(&(a)->x,-1,1)@p1
|
atomic_long_add_unless(&(a)->x,-1,1)@p1
|
atomic64_add_unless(&(a)->x,-1,1)@p1
)
@script:python depends on report@
p1 << r2.p1;
@@
msg = "atomic_add_unless"
coccilib.report.print_report(p1[0], msg)
@r3 exists@
identifier x;
position p1;
@@
(
x = atomic_add_return@p1(-1, ...);
|
x = atomic_long_add_return@p1(-1, ...);
|
x = atomic64_add_return@p1(-1, ...);
)
@script:python depends on report@
p1 << r3.p1;
@@
msg = "x = atomic_add_return(-1, ...)"
coccilib.report.print_report(p1[0], msg)