From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7481C4320E for ; Fri, 20 Aug 2021 00:45:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BECEC61101 for ; Fri, 20 Aug 2021 00:45:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235059AbhHTAqY (ORCPT ); Thu, 19 Aug 2021 20:46:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233644AbhHTAqX (ORCPT ); Thu, 19 Aug 2021 20:46:23 -0400 Received: from mail-lf1-x12a.google.com (mail-lf1-x12a.google.com [IPv6:2a00:1450:4864:20::12a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3B26EC061756; Thu, 19 Aug 2021 17:45:46 -0700 (PDT) Received: by mail-lf1-x12a.google.com with SMTP id u22so16661496lfq.13; Thu, 19 Aug 2021 17:45:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=B6UUQn1STc8n5RrdDxFwFkbni5E05Ry4L1wrDm4nucI=; b=dhkGyKrDTxCmgNMpFAgz2WaKrPg+CSNyRzAiYB43kl6yeQbDahjDIJ/TK/2J2ic8Ll E2tl/9qxs8RYvN4PPGcHA1Ex6c3GjgntwvefOX0TFFvTZ7l1GYIxWvasKP+OAzZwdZkC PqJ1KVNXkSaItGQpnDSkp9gvsz41asPKl1JlwDyzyesc31Wu2VSgo6dBERENv02hfr/l m1VYxrdGY+YibyLUax39cPpuGAqspn4+P+KWtfzAZ/706qExZ2C77+XDhYN/AmwCpqmy 1B8KJ3DoL5EIORt4/lMkgRCIu2TgZ6YHoxYnj36vKyXTdK/WfDwMASrwhSmJueSL86Zt SeNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=B6UUQn1STc8n5RrdDxFwFkbni5E05Ry4L1wrDm4nucI=; b=bKSUXJf/NxE+putE4QcabmvrchRS1ig+G9noWGukVlsisIachTAPcz02M6eFvVDLMV crHY7wPMK1UbgNlJyQqQm2tScCPVmRiY9BEFi4Hh5BsMsmJwXPKmZUka38DwrjgMIgoc m7Qqjc/lsD0IVbb95Tq2MGlgeu7Axq0F+KZnH3nHWXK0U2J429nElS7pdJChAsF0ttck 7RIICiV9oqAwW43wg2ktn+1wQXTqIzorcmQvJkI0+Qt1bRxgN5QCdjZAWeZWhsoQX6OS ENdZ+CiMwxE7p1e0zRxqtkRXHSJJ0gSd3LAuVDrd5sqcNarE+Dv7DOCF5oW1hSvhjno8 QhmA== X-Gm-Message-State: AOAM533sDpjimjrO/PNAlwWmDF8PFqlFMXuv4+7yEBFAPIhAiOpBUMmu 0nGh8SE7qzwikC2ULQMQ/XQ= X-Google-Smtp-Source: ABdhPJyVvnbH1BCym2tJ3sGtkrKop75NuFrCUEOo+55tRDFW6KA/97W5KanEUBQJQTbhfP+YeRItZg== X-Received: by 2002:a05:6512:234e:: with SMTP id p14mr12108170lfu.298.1629420344460; Thu, 19 Aug 2021 17:45:44 -0700 (PDT) Received: from localhost.localdomain (46-138-120-72.dynamic.spd-mgts.ru. [46.138.120.72]) by smtp.gmail.com with ESMTPSA id h6sm507244lfu.230.2021.08.19.17.45.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Aug 2021 17:45:44 -0700 (PDT) From: Dmitry Osipenko To: Jens Axboe , Thierry Reding , Jonathan Hunter , =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= , David Heidelberg , Peter Geis , Ulf Hansson , Adrian Hunter , Christoph Hellwig , Davidlohr Bueso , Rob Herring , Ion Agorria , Svyatoslav Ryhel Cc: linux-tegra@vger.kernel.org, linux-block@vger.kernel.org, linux-efi Subject: [PATCH v7 1/4] block: Add alternative_gpt_sector() operation Date: Fri, 20 Aug 2021 03:45:33 +0300 Message-Id: <20210820004536.15791-2-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210820004536.15791-1-digetx@gmail.com> References: <20210820004536.15791-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org Add alternative_gpt_sector() block device operation which specifies alternative location of a GPT entry. This allows us to support Android devices that have GPT entry at a non-standard location and can't be repartitioned easily. Reviewed-by: Christoph Hellwig Suggested-by: Christoph Hellwig Signed-off-by: Dmitry Osipenko --- include/linux/blkdev.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 111a3911c4d2..d65c8f60ad8e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1850,6 +1850,13 @@ struct block_device_operations { char *(*devnode)(struct gendisk *disk, umode_t *mode); struct module *owner; const struct pr_ops *pr_ops; + + /* + * Special callback for probing GPT entry at a given sector. + * Needed by Android devices, used by GPT scanner and MMC blk + * driver. + */ + int (*alternative_gpt_sector)(struct gendisk *disk, sector_t *sector); }; #ifdef CONFIG_COMPAT -- 2.32.0