[From nobody Thu Jun 25 05:55:58 2020 Received: from polaris.svanheule.net ([84.16.241.116]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnpzp-0007Be-QO for openwrt-devel@lists.openwrt.org; Tue, 23 Jun 2020 20:58:22 +0000 Received: from terra.local.svanheule.net (unknown [IPv6:2a02:a03f:5650:d01:497:5396:74c4:9add]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: sander@svanheule.net) by polaris.svanheule.net (Postfix) with ESMTPSA id B801F154AC7; Tue, 23 Jun 2020 22:58:05 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svanheule.net; s=mail1707; t=1592945885; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=S2aSmN9DGaXtpb8jaeMlXd9Qm1wqbpKQcdYTZP4/A7A=; b=knsg3xXERyrYgNrCmSQybjYPER12Py0c7dyoE38Mw7qlGjYj4Jg8QYdxFUYQ+pStifn2Rj BimYe+MGlEfICQZqRYzg8YAUGRspaqFhu0RpxON1XEsXda9EM7kZBh+J3x4r7L/4Jpslf3 Pjtm6n+Tvi2oqYPQqwe3umDUiSARRV7AXRgRa+w5ezHPooH/XQG1qscCAqzSvjHyRq7SGi jZoPGnEAyAS5/CmSNe0f0YNEjXlbTBbix4emLcnihr3vTlezsoEg/PPDKTGR09gZpJdjUs HSY4O8VjwR0GonZvsjIqtPdNdzI5Vajh4BkuAg23p8Cnxk3UsbCRGL9jtJx29w== From: Sander Vanheule <sander@svanheule.net> To: openwrt-devel@lists.openwrt.org Cc: Sander Vanheule <sander@svanheule.net> Subject: [PATCH 0/1] kernel: mtdsplit: support okli loader splitting Date: Tue, 23 Jun 2020 22:57:54 +0200 Message-Id: <20200623205755.352533-1-sander@svanheule.net> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Note: CRM114 invocation failed X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [84.16.241.116 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain To enable dynamic kernel/rootfs splitting for devices that require an ELF loader, I decided to modify the current splitter for openwrt,okli compatible partitions. openwrt,okli is currently used by one device: PISEN WMB001N. For this device, this patch could remove the custom build directives for the factory images. For TP-Link CPE devices, it could enable a dynamic firmware partition, while these devices currently employ a fixed partition split. The modifications are placed inside mtdsplit_uimage.c to leverage the existing uImage definitions. Alternatively, this loader could be moved to a separate file, but then I would prefer to create an extra mtdsplit_uimage.h header for the common parts. This would touch more parts of the code, but might be better moving forward. This patch was also posted on github with pull request #3130 https://github.com/openwrt/openwrt/pull/3130 Sander Vanheule (1): kernel: mtdsplit: support okli loader splitting .../drivers/mtd/mtdsplit/mtdsplit_uimage.c | 124 +++++++++++++++++- 1 file changed, 118 insertions(+), 6 deletions(-) -- 2.26.2 ]