coccinelle: api: add spatch to prevent unnecessary .owner
There are calls which silently set the owner of a module. This is the preferred way [1], so avoid setting it manually. Currently, we only care about platform drivers, but there might be more calls to be added later. [1] https://lkml.org/lkml/2014/10/12/87 Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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/// Remove .owner field if calls are used which set it automatically
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///
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// Confidence: High
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// Copyright: (C) 2014 Wolfram Sang. GPL v2.
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virtual patch
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virtual context
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virtual org
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virtual report
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@match1@
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declarer name module_platform_driver;
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declarer name module_platform_driver_probe;
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identifier __driver;
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@@
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(
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module_platform_driver(__driver);
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module_platform_driver_probe(__driver, ...);
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)
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@fix1 depends on match1 && patch && !context && !org && !report@
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identifier match1.__driver;
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@@
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static struct platform_driver __driver = {
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.driver = {
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- .owner = THIS_MODULE,
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}
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};
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@match2@
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identifier __driver;
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@@
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(
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platform_driver_register(&__driver)
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platform_driver_probe(&__driver, ...)
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platform_create_bundle(&__driver, ...)
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)
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@fix2 depends on match2 && patch && !context && !org && !report@
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identifier match2.__driver;
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@@
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static struct platform_driver __driver = {
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.driver = {
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- .owner = THIS_MODULE,
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}
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};
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// ----------------------------------------------------------------------------
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@fix1_context depends on match1 && !patch && (context || org || report)@
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identifier match1.__driver;
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position j0;
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@@
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static struct platform_driver __driver = {
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.driver = {
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* .owner@j0 = THIS_MODULE,
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}
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};
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@fix2_context depends on match2 && !patch && (context || org || report)@
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identifier match2.__driver;
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position j0;
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@@
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static struct platform_driver __driver = {
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.driver = {
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* .owner@j0 = THIS_MODULE,
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}
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};
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// ----------------------------------------------------------------------------
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@script:python fix1_org depends on org@
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j0 << fix1_context.j0;
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@@
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msg = "No need to set .owner here. The core will do it."
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coccilib.org.print_todo(j0[0], msg)
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@script:python fix2_org depends on org@
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j0 << fix2_context.j0;
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@@
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msg = "No need to set .owner here. The core will do it."
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coccilib.org.print_todo(j0[0], msg)
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// ----------------------------------------------------------------------------
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@script:python fix1_report depends on report@
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j0 << fix1_context.j0;
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@@
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msg = "No need to set .owner here. The core will do it."
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coccilib.report.print_report(j0[0], msg)
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@script:python fix2_report depends on report@
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j0 << fix2_context.j0;
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@@
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msg = "No need to set .owner here. The core will do it."
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coccilib.report.print_report(j0[0], msg)
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