Message ID | 20230208111330.439504-2-gregkh@linuxfoundation.org |
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State | New |
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Wysocki" <rafael@kernel.org> Subject: [PATCH 01/21] driver core: add local subsys_get and subsys_put functions Date: Wed, 8 Feb 2023 12:13:10 +0100 Message-Id: <20230208111330.439504-2-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230208111330.439504-1-gregkh@linuxfoundation.org> References: <20230208111330.439504-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1087; i=gregkh@linuxfoundation.org; h=from:subject; bh=sdzTtC9zNARFDh/vm8BmQmgIG2LMt8G7elj3RADg63I=; b=owGbwMvMwCRo6H6F97bub03G02pJDMmPm6/W90/+8qVyl26taqRiwt/2qNvma7ZKO2+SM22Z/OXv 2/n+HbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCRc1cZZrOc/+Oh8f2s5/WO0HqdKy x7fNPWfGNYcEnsrmLfBm7LeSvmJTbP+Hk082kQHwA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1757261263822270611?= X-GMAIL-MSGID: =?utf-8?q?1757261263822270611?= |
Series |
driver core: bus: remove private "backpointer" from struct bus_type
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Commit Message
Greg KH
Feb. 8, 2023, 11:13 a.m. UTC
We need to control the reference count of the subsys private structure
instead of directly manipulating the kset reference count of it, so wrap
that logic up in a subsys_get() and subsys_put() function to make it more
obvious as to what is happening.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/base.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/base/base.h b/drivers/base/base.h index 0e806f641079..9e06c18c7a64 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -57,6 +57,19 @@ struct subsys_private { }; #define to_subsys_private(obj) container_of_const(obj, struct subsys_private, subsys.kobj) +static inline struct subsys_private *subsys_get(struct subsys_private *sp) +{ + if (sp) + kset_get(&sp->subsys); + return sp; +} + +static inline void subsys_put(struct subsys_private *sp) +{ + if (sp) + kset_put(&sp->subsys); +} + struct driver_private { struct kobject kobj; struct klist klist_devices;