Patch Detail
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Show a patch.
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Update a patch.
put:
Update a patch.
GET /api/1.1/patches/2231876/?format=api
{ "id": 2231876, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2231876/?format=api", "web_url": "http://patchwork.ozlabs.org/project/buildroot/patch/20260501131030.1109367-2-fiona.klute@gmx.de/", "project": { "id": 27, "url": "http://patchwork.ozlabs.org/api/1.1/projects/27/?format=api", "name": "Buildroot development", "link_name": "buildroot", "list_id": "buildroot.buildroot.org", "list_email": "buildroot@buildroot.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260501131030.1109367-2-fiona.klute@gmx.de>", "date": "2026-05-01T13:10:30", "name": "[v2,2/2] package/kmod: enable dlopen() for compression libraries (if any)", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "f49260da98e98d597af724758f97fc736ca43266", "submitter": { "id": 88431, "url": "http://patchwork.ozlabs.org/api/1.1/people/88431/?format=api", "name": "Fiona Klute", "email": "fiona.klute@gmx.de" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/buildroot/patch/20260501131030.1109367-2-fiona.klute@gmx.de/mbox/", "series": [ { "id": 502458, "url": "http://patchwork.ozlabs.org/api/1.1/series/502458/?format=api", "web_url": "http://patchwork.ozlabs.org/project/buildroot/list/?series=502458", "date": "2026-05-01T13:10:30", "name": "[v2,1/2] package/kmod: switch to Meson build", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/502458/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2231876/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2231876/checks/", "tags": {}, "headers": { "Return-Path": "<buildroot-bounces@buildroot.org>", "X-Original-To": [ "incoming-buildroot@patchwork.ozlabs.org", "buildroot@buildroot.org" ], "Delivered-To": [ "patchwork-incoming-buildroot@legolas.ozlabs.org", "buildroot@buildroot.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=buildroot.org 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"X-Mailman-Original-Authentication-Results": [ "smtp1.osuosl.org;\n dmarc=pass (p=quarantine dis=none)\n header.from=gmx.de", "smtp1.osuosl.org;\n dkim=pass (2048-bit key) header.d=gmx.de header.i=fiona.klute@gmx.de\n header.a=rsa-sha256 header.s=s31663417 header.b=SyREflKg" ], "Subject": "[Buildroot] [PATCH v2 2/2] package/kmod: enable dlopen() for\n compression libraries (if any)", "X-BeenThere": "buildroot@buildroot.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Discussion and development of buildroot <buildroot.buildroot.org>", "List-Unsubscribe": "<https://lists.buildroot.org/mailman/options/buildroot>,\n <mailto:buildroot-request@buildroot.org?subject=unsubscribe>", "List-Archive": "<http://lists.buildroot.org/pipermail/buildroot/>", "List-Post": "<mailto:buildroot@buildroot.org>", "List-Help": "<mailto:buildroot-request@buildroot.org?subject=help>", "List-Subscribe": "<https://lists.buildroot.org/mailman/listinfo/buildroot>,\n <mailto:buildroot-request@buildroot.org?subject=subscribe>", "From": "Fiona Klute via buildroot <buildroot@buildroot.org>", "Reply-To": "Fiona Klute <fiona.klute@gmx.de>", "Cc": "Eric Le Bihan <eric.le.bihan.dev@free.fr>,\n \"Yann E . MORIN\" <yann.morin.1998@free.fr>, Julien Olivain <ju.o@free.fr>,\n Marcus Hoffmann <buildroot@bubu1.eu>, Fiona Klute <fiona.klute@gmx.de>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "buildroot-bounces@buildroot.org", "Sender": "\"buildroot\" <buildroot-bounces@buildroot.org>" }, "content": "With dlopen() enabled, kmod will load compression libraries only if\nactually needed (loading compressed modules into the kernel does not\nif the kernel can handle decompression, depending on its\nconfiguration), and only the needed one.\n\nUse compressed modules in the kmod test without enabling in-kernel\ndecompression to verify decompression in kmod works.\n\nSigned-off-by: Fiona Klute <fiona.klute@gmx.de>\n---\nChanges v1 -> v2:\n* extend test to cover compressed module handling\n\nv1: https://patchwork.ozlabs.org/project/buildroot/patch/20260425085657.474422-6-fiona.klute@gmx.de/\n\n package/kmod/kmod.mk | 4 ++++\n support/testing/tests/package/test_kmod.py | 18 +++++++++++++-----\n .../test_kmod/compressed-modules.fragment | 3 +++\n 3 files changed, 20 insertions(+), 5 deletions(-)\n create mode 100644 support/testing/tests/package/test_kmod/compressed-modules.fragment", "diff": "diff --git a/package/kmod/kmod.mk b/package/kmod/kmod.mk\nindex 0901afc872..4bd64f8456 100644\n--- a/package/kmod/kmod.mk\n+++ b/package/kmod/kmod.mk\n@@ -28,6 +28,10 @@ endif\n \n KMOD_CONF_OPTS += -Dfishcompletiondir=no -Dzshcompletiondir=no\n \n+# load compression libraries (if any are enabled below) as needed\n+# using dlopen()\n+KMOD_CONF_OPTS += -Ddlopen=all\n+\n ifeq ($(BR2_PACKAGE_ZLIB),y)\n KMOD_DEPENDENCIES += zlib\n KMOD_CONF_OPTS += -Dzlib=enabled\ndiff --git a/support/testing/tests/package/test_kmod.py b/support/testing/tests/package/test_kmod.py\nindex e11d3b702c..3c06589b2b 100644\n--- a/support/testing/tests/package/test_kmod.py\n+++ b/support/testing/tests/package/test_kmod.py\n@@ -4,10 +4,13 @@ import infra.basetest\n \n \n class TestKmod(infra.basetest.BRTest):\n- # This test uses the \"virtio_net\" driver compiled as a module. We\n- # need to recompile a Kernel for that.\n- kernel_fragment = \\\n- infra.filepath(\"tests/package/test_kmod/linux-virtio-net.fragment\")\n+ # This test uses the \"virtio_net\" driver compiled as a module, and\n+ # compressed modules to test that kmod can handle them. We need to\n+ # compile a kernel for that.\n+ kernel_fragments = (\n+ infra.filepath(\"tests/package/test_kmod/compressed-modules.fragment\"),\n+ infra.filepath(\"tests/package/test_kmod/linux-virtio-net.fragment\"),\n+ )\n config = \\\n f\"\"\"\n BR2_aarch64=y\n@@ -18,10 +21,13 @@ class TestKmod(infra.basetest.BRTest):\n BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE=\"6.6.135\"\n BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y\n BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE=\"board/qemu/aarch64-virt/linux.config\"\n- BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES=\"{kernel_fragment}\"\n+ BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES=\"{\" \".join(kernel_fragments)}\"\n BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y\n BR2_PACKAGE_KMOD=y\n BR2_PACKAGE_KMOD_TOOLS=y\n+ BR2_PACKAGE_ZSTD=y\n+ BR2_PACKAGE_HOST_KMOD=y\n+ BR2_PACKAGE_HOST_KMOD_ZSTD=y\n BR2_TARGET_ROOTFS_EXT2=y\n BR2_TARGET_ROOTFS_EXT2_4=y\n # BR2_TARGET_ROOTFS_TAR is not set\n@@ -48,6 +54,7 @@ class TestKmod(infra.basetest.BRTest):\n out, ret = self.emulator.run(\"modprobe --version\")\n self.assertEqual(ret, 0)\n self.assertTrue(out[0].startswith(\"kmod version\"))\n+ self.assertIn(\"+ZSTD\", out[1])\n \n # List modules with \"kmod list\", the virtio-net module should\n # NOT be loaded yet.\n@@ -61,6 +68,7 @@ class TestKmod(infra.basetest.BRTest):\n lsmod_out = \"\\n\".join(out)\n self.assertRegex(lsmod_out, r'name: *virtio_net')\n self.assertRegex(lsmod_out, r'description: *Virtio network driver')\n+ self.assertRegex(lsmod_out, r'filename:\\s+/.*/virtio_net.ko.zst')\n \n # With this test configuration, we are not supposed to have an\n # eth0 Ethernet interface yet. Attempting to show info on this\ndiff --git a/support/testing/tests/package/test_kmod/compressed-modules.fragment b/support/testing/tests/package/test_kmod/compressed-modules.fragment\nnew file mode 100644\nindex 0000000000..2471adebbd\n--- /dev/null\n+++ b/support/testing/tests/package/test_kmod/compressed-modules.fragment\n@@ -0,0 +1,3 @@\n+CONFIG_MODULE_COMPRESS=y\n+CONFIG_MODULE_COMPRESS_ZSTD=y\n+CONFIG_MODULE_COMPRESS_ALL=y\n", "prefixes": [ "v2", "2/2" ] }