From patchwork Sat Feb 3 18:53:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ricardo B. Marliere" X-Patchwork-Id: 13544358 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F2B60C48297 for ; Sat, 3 Feb 2024 19:30:14 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.675436.1050837 (Exim 4.92) (envelope-from ) id 1rWLi8-0004eQ-0C; Sat, 03 Feb 2024 19:29:56 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 675436.1050837; Sat, 03 Feb 2024 19:29:55 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rWLi7-0004e4-SP; Sat, 03 Feb 2024 19:29:55 +0000 Received: by outflank-mailman (input) for mailman id 675436; Sat, 03 Feb 2024 18:53:19 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rWL8h-0000aF-1I for xen-devel@lists.xenproject.org; Sat, 03 Feb 2024 18:53:19 +0000 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [2607:f8b0:4864:20::1035]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 7c572b2b-c2c5-11ee-98f5-efadbce2ee36; Sat, 03 Feb 2024 19:53:15 +0100 (CET) Received: by mail-pj1-x1035.google.com with SMTP id 98e67ed59e1d1-295c8b795e2so2334082a91.0 for ; Sat, 03 Feb 2024 10:53:15 -0800 (PST) Received: from mail.marliere.net ([24.199.118.162]) by smtp.gmail.com with ESMTPSA id s15-20020a17090ad48f00b0029636e02c83sm2143181pju.35.2024.02.03.10.53.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 03 Feb 2024 10:53:13 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 7c572b2b-c2c5-11ee-98f5-efadbce2ee36 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706986394; x=1707591194; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:dkim-signature:from:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=xhpVXJ+IMs5n5HNm3DBIJeHeLpAjHMNMhg7tgPyvFRk=; b=H5XMAFxaQQWmOt17FbGQZka99oeOhDcMJW07MlOBMrFbTqjfr2DkU1e6nX/f0kh8Rb zYQF9SPAUR3pY5OtscgkqpS+7aBuCVAXeu0M23UtDnSAr8SWc5WOCYkI7ruui72vBxI7 S4yMq3WeLFORSPqC8jl8g0HMckUXF01IoizEbmhVNgrdSJINO+ckopijq2Y/sJcbBnK1 TD6BquEk9HJv51Qrm4+jmdPmiATpeSiJ3500f2VgFK6U1OApHJgCJymIy+kX3ijv+imX PAuybluVSogJnrJeMsh5vLYIc5W6/J35XysbLZHPAEv/bQoTPNVK3p8oGRnhpe9lQbQK MWYg== X-Gm-Message-State: AOJu0YzEOHLeDnu5cI7rYBH7zB5wWhG6dg9JcTfQKuk+fnBdojhQWgmc X4T32Qo/eUPb1u+5eGByY20EfbYaxD/UGEngY/kWZ6XF19vyElDr X-Google-Smtp-Source: AGHT+IHNiV9m9PnT9NfWWTLKS5PfvHJH3YAPWwmMb5gceIQF3VaO+pK7Qdw5HKIhnVCxyVRzaLS1KA== X-Received: by 2002:a17:90a:fd84:b0:295:ab00:e9b9 with SMTP id cx4-20020a17090afd8400b00295ab00e9b9mr8137370pjb.5.1706986393946; Sat, 03 Feb 2024 10:53:13 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCXU3F//e13WRqDNIvePL9ElC+L1hOrpM9eXVNU4WUyGNILtV/P/hwWPIxHcY/Hvjec4tjvqzgBxTPCeEAppBqwINIMrDzRToVZ0tb5Z/wj6qHZyi4NVR1xqob4Xsz+T70MOVp0cAogc/podyejn4uFBRbE4r4EOOtlGtaKY7e2jZh8oi3f3/uNG4PgqC+bs/xyOW6UAaWOlg2fGjiWqRkI= From: "Ricardo B. Marliere" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marliere.net; s=2023; t=1706986392; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xhpVXJ+IMs5n5HNm3DBIJeHeLpAjHMNMhg7tgPyvFRk=; b=HgpwLjLE+5IojjaDPw5lVDBUECMPSExHUMPhE++AL5xcGmYR3TeDz16MbH7zvVuZcuV5RZ 4CNrmHvySWMapk0sZFaMJeQB6tvCEaW0NIrF7d4w6ZrmiMrby4BgZAvN9+tjz2G++u4r4w g1WohaDiXSkJ1PbbGFjguIfXcDkazNeuHAmnsCs4+TAQfGKlZ7bW55I1mz//fZzFDUowaB tk1ydtFuveiyVSiNX44BG98XUe9QjlUuP2GlA8LuzUTVUjJx+In/cmZUhiecYr1pC45nAL G5A49wyLaW2gu6Xab/A/hPxI/xxjRRLzA32U6yU+UZiHTQntU4nRd9xKIoQPuQ== Authentication-Results: ORIGINATING; auth=pass smtp.auth=ricardo@marliere.net smtp.mailfrom=ricardo@marliere.net Date: Sat, 03 Feb 2024 15:53:37 -0300 Subject: [PATCH 1/2] xen: pcpu: make xen_pcpu_subsys const MIME-Version: 1.0 Message-Id: <20240203-bus_cleanup-xen-v1-1-c2f5fe89ed95@marliere.net> References: <20240203-bus_cleanup-xen-v1-0-c2f5fe89ed95@marliere.net> In-Reply-To: <20240203-bus_cleanup-xen-v1-0-c2f5fe89ed95@marliere.net> To: Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , "Ricardo B. Marliere" X-Developer-Signature: v=1; a=openpgp-sha256; l=846; i=ricardo@marliere.net; h=from:subject:message-id; bh=uVbAr2jHnQr3MqspyOfEzRc9k0HTklRcQDcrLwrPX2E=; b=owEBbQKS/ZANAwAKAckLinxjhlimAcsmYgBlvouxTV6WmgHhD2cBPYK/XUfsjwDH4uwBWaCje UD7Ddr2uBiJAjMEAAEKAB0WIQQDCo6eQk7jwGVXh+HJC4p8Y4ZYpgUCZb6LsQAKCRDJC4p8Y4ZY pqGCEACkMVwx/dvxAGqkTeMv3vt97i5rt0L9zEHqvNbgGvxqXH7vIcUCDiuX+ziP0EpEUVdYV7k lpXpbodhjS9FFsFGFz+otupP0ETTWlykpYf/fV0R6CVcDHTGeh0KsvlBE7wUod6gN+x3+70cpxV EUX/Gy7KTHd/1RUYtnvcWjdNXky9qsWIHZ2gUY29UljGu+pWgXXM0y6N0bWUdI8jOVr/O08mscj NWZMFj6l0KmP/xmu/YZtnsvmmG59BTE+1TDPZMwWv8Bc0NBN/Crf+cdpOUHf4Ttp8Pm2kGuarNT epDpJ5MtH4kwMI2VrQfnzo7rBSHjPn0o2n1LofwAcPMkcJ8dP6YA9/p3MC+hfScuRVo3pmo44En zjZwz2RoD2zzRhDoj1uJqjWwVl6bsxnTOgHp+FRHWnCzFb5QBWGpGYD6RskC7YyrywFqE5cr7cW pU4zo1L7Cx+k2hvWPt20+Q6fuF4zike1ItHUAfV1yGVnk5vMDQYUMgYzaDanTJInoosriAsw0mi OpefvNjEidNZXxXHfsem3ZpKpUonrVqErVqmKcEgeaT2BKa4DoqQMwyubVpOD8pSA2KOMZyWWpQ IBegfAdUOBd2Jv+Tf2UkaszcT1FEawY0F5HjWONwE5U2joStmRWirRS/yA3lTCeB2laJlFHBY9L waKgnT3rwMWDgAg== X-Developer-Key: i=ricardo@marliere.net; a=openpgp; fpr=030A8E9E424EE3C0655787E1C90B8A7C638658A6 Now that the driver core can properly handle constant struct bus_type, move the xen_pcpu_subsys variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman Suggested-by: Greg Kroah-Hartman Signed-off-by: Ricardo B. Marliere --- drivers/xen/pcpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/xen/pcpu.c b/drivers/xen/pcpu.c index 508655273145..c63f317e3df3 100644 --- a/drivers/xen/pcpu.c +++ b/drivers/xen/pcpu.c @@ -65,7 +65,7 @@ struct pcpu { uint32_t flags; }; -static struct bus_type xen_pcpu_subsys = { +static const struct bus_type xen_pcpu_subsys = { .name = "xen_cpu", .dev_name = "xen_cpu", }; From patchwork Sat Feb 3 18:53:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ricardo B. Marliere" X-Patchwork-Id: 13544357 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA74FC4828F for ; Sat, 3 Feb 2024 19:30:13 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.675438.1050843 (Exim 4.92) (envelope-from ) id 1rWLi8-0004ij-8e; Sat, 03 Feb 2024 19:29:56 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 675438.1050843; Sat, 03 Feb 2024 19:29:56 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rWLi8-0004g3-20; Sat, 03 Feb 2024 19:29:56 +0000 Received: by outflank-mailman (input) for mailman id 675438; Sat, 03 Feb 2024 18:53:20 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1rWL8i-0000aF-Bf for xen-devel@lists.xenproject.org; Sat, 03 Feb 2024 18:53:20 +0000 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [2607:f8b0:4864:20::62f]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 7e4fe044-c2c5-11ee-98f5-efadbce2ee36; Sat, 03 Feb 2024 19:53:18 +0100 (CET) Received: by mail-pl1-x62f.google.com with SMTP id d9443c01a7336-1d746ce7d13so26478225ad.0 for ; Sat, 03 Feb 2024 10:53:18 -0800 (PST) Received: from mail.marliere.net ([24.199.118.162]) by smtp.gmail.com with ESMTPSA id l5-20020a170902e2c500b001d974ffa1fcsm3058420plc.173.2024.02.03.10.53.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 03 Feb 2024 10:53:16 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 7e4fe044-c2c5-11ee-98f5-efadbce2ee36 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706986397; x=1707591197; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:dkim-signature:from:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=UMK6uKXfNz/nsGcon/C8VrTPd2Ab3T3BTLt2EsWBnyE=; b=saFRPwXInioejC9THgb1GFaYjwXfKwzzx3foD7cVpDbopbriM/v9ZFu5Q3Ejh4zO8n DTh72HFCjeZcLJzSDs2mJNGWVaXjZaWJ+n72mh7Flt2U8weOVnLllUp2OG0enPXC/xrO Z2UB/VoZJlFNPGl0Rne9gSYIimAB1dMphhAmrCJGO6Uj4FVfAaOaIdSP/asCul+K9DMv TnAc3V/KsIgbmi6YXOCptcn4eJsFXr6hl/KHoAHJmqYToT0+uU8WQWYWAgdCI24hFq5H sK5yuc/PY1NNBfimXngFzI8cFRdyqKPWiQLjEpuGko6E2QQm/Zhu1QkrOQGYLXqvSJmE p20A== X-Gm-Message-State: AOJu0YzAEmtXHMPyiph74d9yUzLMM7lcXoT50wkAW1eG39HfggOE0V8k YLmDmyFK2x7H0dotAq9ZdxXgSfmKwkQdxiat+Sgsv0Th2C56+rjN X-Google-Smtp-Source: AGHT+IGbH6ZYJYqCyLdLrsDa8OizYNf648PZ/HHOu7tx8iYG0Ii4xFkddglDF0dNTfItn0AvcwNOSw== X-Received: by 2002:a17:903:249:b0:1d4:e208:9b0 with SMTP id j9-20020a170903024900b001d4e20809b0mr11130471plh.44.1706986397240; Sat, 03 Feb 2024 10:53:17 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCW2Fadp/SGhL3HK6yTH0lKP3rfGEbv8/GAi3tzKf8/aeB0by5STQsj+r3op+wDEmYIuRn3Y/pBERUwnHxVAj4AYKwjYXs2RMwgg8oZjWyGFLFfGNnYidF/TBcQMLaYr33BdKR1jQVFG4GsnUWg1Hw7QkEcXLBHAY2zOJza4ElNmpOGKSOReeWllojdyhoXBArdQTvK9HvU0OGd8+ruzpG4= From: "Ricardo B. Marliere" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marliere.net; s=2023; t=1706986395; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UMK6uKXfNz/nsGcon/C8VrTPd2Ab3T3BTLt2EsWBnyE=; b=d/b91IH79JyEKl4lTtvPDJZkgOP3vWmmAkRT4CCuLWZ0q0cM4YSYxO5x90ynhmRNqoGAb2 MX5rNMnI6UgqZnWkeyWxjhJFxu6toynOA6u1Xf39buDCaFsawntbhwVEJp4N+4J3Ac2VGr 5JhntPbRQe4HHwF5nDA3tPxH7mRIfY9eC35llsvDKa1lKbPx5tocjZGIlRdh4fmxIRP4dz lDNqKI/O8JqdQhhFkkGn7Ql88HC6qMjbRvdMxfjHIwzMEgQ1Pv8KMtRVhdEHMuj4oHrKqI 4GnnRAarZ2sl5RD64TTF9uXul3GTgCxT+M5jvICQ2/zjXOW1oyqh6CeYlAXRYw== Authentication-Results: ORIGINATING; auth=pass smtp.auth=ricardo@marliere.net smtp.mailfrom=ricardo@marliere.net Date: Sat, 03 Feb 2024 15:53:38 -0300 Subject: [PATCH 2/2] xen: balloon: make balloon_subsys const MIME-Version: 1.0 Message-Id: <20240203-bus_cleanup-xen-v1-2-c2f5fe89ed95@marliere.net> References: <20240203-bus_cleanup-xen-v1-0-c2f5fe89ed95@marliere.net> In-Reply-To: <20240203-bus_cleanup-xen-v1-0-c2f5fe89ed95@marliere.net> To: Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , "Ricardo B. Marliere" X-Developer-Signature: v=1; a=openpgp-sha256; l=931; i=ricardo@marliere.net; h=from:subject:message-id; bh=a15mtQr01yfWQWLF5/5WsbY/2R7o79ghPTBzDCe5X0Y=; b=owEBbQKS/ZANAwAKAckLinxjhlimAcsmYgBlvouxq6eiZcwBEfL0eKDgR/Tsw3cuRwc1xJx6s WHMrCFJCRGJAjMEAAEKAB0WIQQDCo6eQk7jwGVXh+HJC4p8Y4ZYpgUCZb6LsQAKCRDJC4p8Y4ZY poA/EACY3HzoQHClLbpnthOER522MUTZO2lQJLXt+WNqaobWySLeseiDeex2CGxWdeGsn4gzV3s SCD7J00yLWCX29j3M/BvDTPmePA+mavHsyQ8rQielbuNnr3B5iXLYmHFaBEHd4D2+LC7NolXmwA XDAa2sLewEnr7rvIk2PMjlmcHa/KIOh6G7Ls/12Q95339qmdPhDIbZk4NjH2KY8Pr8OAzRw4DpW UptByEzu3k1kS59uBT7FfrjvIU4fWmEmlJAWU/LoXKt+AlkbrOoNcKRsXX0Z174cxZlT6u3EHeA I2zaEzpITAelotRc53pJpVw4pzdKJoodaRIIF0+Tnolc3K2iclnHCHLVP4ZzSdP4cuSd5yaD/Me yyS84r5wQksXW4aqTvmhHDVz/YVK/N2O9wGRo/hQiDzT5LZKnBuXJWYc0zDIrLdI/Bint4kKJDm ygxa+XRL8U7KhpMsuSe2vrNMlvt5+r6SVeqQ+3PyxjSEIHm5A6Tlq87EC3InHuN7v+bv6ciEkb6 WMn5YKTe/VR9rmjUqqIs9KaSOzg5EBPrU5KJAi+EPyEBuUOOYUoNxAaea7dJMRdHqRIhcyvb40J khD83wKupnXtMRyuSG2iGRp64bsE1ep9J/UU27/ZdmANXs+kxoaU0PnFf1APqUm18cS3GHxwLRs PWecp9qGUFo1M6g== X-Developer-Key: i=ricardo@marliere.net; a=openpgp; fpr=030A8E9E424EE3C0655787E1C90B8A7C638658A6 Now that the driver core can properly handle constant struct bus_type, move the balloon_subsys variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman Suggested-by: Greg Kroah-Hartman Signed-off-by: Ricardo B. Marliere --- drivers/xen/xen-balloon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c index 8cd583db20b1..b293d7652f15 100644 --- a/drivers/xen/xen-balloon.c +++ b/drivers/xen/xen-balloon.c @@ -237,7 +237,7 @@ static const struct attribute_group *balloon_groups[] = { NULL }; -static struct bus_type balloon_subsys = { +static const struct bus_type balloon_subsys = { .name = BALLOON_CLASS_NAME, .dev_name = BALLOON_CLASS_NAME, };