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Tue, 16 Oct 2018 14:33:59 +0000 (GMT) To: Boris Ostrovsky , Juergen Gross Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org From: Bartlomiej Zolnierkiewicz Subject: [PATCH] xen: remove redundant 'default n' from Kconfig Date: Tue, 16 Oct 2018 16:33:58 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkleLIzCtJLcpLzFFi42LZduznOd0b345GG6zax21xcXori8Wcm0YW l3fNYbP4vmUykwOLx+EPV1g8Pj69xeKxfstVFo/Pm+QCWKK4bFJSczLLUov07RK4MlpuzWIs 2C1V8e90F0sD406RLkZODgkBE4mTt2aydjFycQgJrGCUeDF1ARuE84VRYv/r40wQzmdGidMv G9hgWg6uWMsIkVjOKPHl/HkmkISQwHtGiXdrA0FsEYFgiV+PJ7GD2MwCDhKXe7+B1bAJWElM bF/FCGILC9hLfN33E6yGRUBVYvWSKyxdjBwcogIREv1n1EHCvAKCEidnPmGBGCMvsf3tHGaQ vRICr9kkZr38zwZRVCZx6eA0RojjXCQWNJ9lhbCFJV4d38IOYctI/N85nwmieTqjxJtfS1kg nPWMEmvOHGOCqLKWOHz8IivIFcwCmhLrd+lDhB0lXu1cCxaWEOCTuPFWEOIgPolJ26YzQ4R5 JTrahCCq1SQ2LNvABrO2a+dKZgjbQ+Lg71ZWSFDFSnTcWsY8gVFhFpI3ZyF5cxbCDQsYmVcx iqeWFuempxYb56WW6xUn5haX5qXrJefnbmIEJpDT/45/3cG470/SIUYBDkYlHt4f149EC7Em lhVX5h5ilOBgVhLhTb90NFqINyWxsiq1KD++qDQntfgQozQHi5I477J5G6OFBNITS1KzU1ML UotgskwcnFINjOnHhK/+aeM9P2mFedPua/flrt2aUGcTsPLukqKPv3Ud5kyLmaviy36xYNfk jwaxczx9V3z5bnuq6/rSc6ve2tSszf/O3bVXlLuJ5VbJ/88fj/7bZaae92SKh2Lk72Vvtqfv e194e3r3wqe7V7Ro5y5ewnOm65Jr8pOn/DtLP0/OcTg5QXSpzUMNJZbijERDLeai4kQAW+tS gRwDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrCLMWRmVeSWpSXmKPExsVy+t/xu7rXvx2NNrj0UMDi4vRWFos5N40s Lu+aw2bxfctkJgcWj8MfrrB4fHx6i8Vj/ZarLB6fN8kFsETp2RTll5akKmTkF5fYKkUbWhjp GVpa6BmZWOoZGpvHWhmZKunb2aSk5mSWpRbp2yXoZbTcmsVYsFuq4t/pLpYGxp0iXYycHBIC JhIHV6xlBLGFBJYySmz/yd7FyAEUl5E4vr4MokRY4s+1LrYuRi6gkreMErebGplAakQEgiXW 7k4CqWEWcJC43PuNCcRmE7CSmNi+CmyksIC9xNd9ECN5BewkJq0RAgmzCKhKrF5yhQXEFhWI kLj1sAPM5hUQlDg58wkLxEh1iT/zLjFD2PIS29/OYZ7AyD8LSdksJGWzkJQtYGRexSiSWlqc m55bbKRXnJhbXJqXrpecn7uJERji24793LKDsetd8CFGAQ5GJR7eH9ePRAuxJpYVV+YeYpTg YFYS4U2/dDRaiDclsbIqtSg/vqg0J7X4EKMp0OETmaVEk/OB8ZdXEm9oamhuYWlobmxubGah JM573qAySkggPbEkNTs1tSC1CKaPiYNTqoGx50WW79HMHjet1QyHN514JD7nUpbP9o2XJwlv F268GvIr96D67c6Os61P9Qx2tl5YJfVilfHu89VHXrvZvXjGo9hxTp1lRlrfNNEnDvrTJxhx zX214MqaTr7pf88culj5vXPhHSG/Jx++bUtY+dqv+WtfeZ2YeUrr+g9ZvmUMullKx1/PNOPr VmIpzkg01GIuKk4EAFyeuqGHAgAA Message-Id: <20181016143359eucas1p1b2033a69cc7b03c090125e1b9566fc1d~eHWRlFIki1482014820eucas1p1q@eucas1p1.samsung.com> X-CMS-MailID: 20181016143359eucas1p1b2033a69cc7b03c090125e1b9566fc1d X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20181016143359eucas1p1b2033a69cc7b03c090125e1b9566fc1d X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20181016143359eucas1p1b2033a69cc7b03c090125e1b9566fc1d References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 'default n' is the default value for any bool or tristate Kconfig setting so there is no need to write it explicitly. Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO is not set' for visible symbols") the Kconfig behavior is the same regardless of 'default n' being present or not: ... One side effect of (and the main motivation for) this change is making the following two definitions behave exactly the same: config FOO bool config FOO bool default n With this change, neither of these will generate a '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied). That might make it clearer to people that a bare 'default n' is redundant. ... Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/xen/Kconfig | 8 -------- 1 file changed, 8 deletions(-) Index: b/drivers/xen/Kconfig =================================================================== --- a/drivers/xen/Kconfig 2018-10-09 15:58:51.191123246 +0200 +++ b/drivers/xen/Kconfig 2018-10-16 16:32:13.387726147 +0200 @@ -12,7 +12,6 @@ config XEN_BALLOON config XEN_SELFBALLOONING bool "Dynamically self-balloon kernel memory to target" depends on XEN && XEN_BALLOON && CLEANCACHE && SWAP && XEN_TMEM - default n help Self-ballooning dynamically balloons available kernel memory driven by the current usage of anonymous memory ("committed AS") and @@ -27,7 +26,6 @@ config XEN_SELFBALLOONING config XEN_BALLOON_MEMORY_HOTPLUG bool "Memory hotplug support for Xen balloon driver" - default n depends on XEN_BALLOON && MEMORY_HOTPLUG help Memory hotplug support for Xen balloon driver allows expanding memory @@ -226,7 +224,6 @@ config XEN_PCIDEV_BACKEND config XEN_PVCALLS_FRONTEND tristate "XEN PV Calls frontend driver" depends on INET && XEN - default n select XEN_XENBUS_FRONTEND help Experimental frontend for the Xen PV Calls protocol @@ -237,7 +234,6 @@ config XEN_PVCALLS_FRONTEND config XEN_PVCALLS_BACKEND bool "XEN PV Calls backend driver" depends on INET && XEN && XEN_BACKEND - default n help Experimental backend for the Xen PV Calls protocol (https://xenbits.xen.org/docs/unstable/misc/pvcalls.html). It @@ -263,7 +259,6 @@ config XEN_PRIVCMD config XEN_STUB bool "Xen stub drivers" depends on XEN && X86_64 && BROKEN - default n help Allow kernel to install stub drivers, to reserve space for Xen drivers, i.e. memory hotplug and cpu hotplug, and to block native drivers loaded, @@ -274,7 +269,6 @@ config XEN_STUB config XEN_ACPI_HOTPLUG_MEMORY tristate "Xen ACPI memory hotplug" depends on XEN_DOM0 && XEN_STUB && ACPI - default n help This is Xen ACPI memory hotplug. @@ -286,7 +280,6 @@ config XEN_ACPI_HOTPLUG_CPU tristate "Xen ACPI cpu hotplug" depends on XEN_DOM0 && XEN_STUB && ACPI select ACPI_CONTAINER - default n help Xen ACPI cpu enumerating and hotplugging @@ -315,7 +308,6 @@ config XEN_ACPI_PROCESSOR config XEN_MCE_LOG bool "Xen platform mcelog" depends on XEN_DOM0 && X86_64 && X86_MCE - default n help Allow kernel fetching MCE error from Xen platform and converting it into Linux mcelog format for mcelog tools