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GET /api/patches/2226487/?format=api
{ "id": 2226487, "url": "http://patchwork.ozlabs.org/api/patches/2226487/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/f8f4e639-0e73-4d14-828a-92dbfe5526ba@cherry.de/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<f8f4e639-0e73-4d14-828a-92dbfe5526ba@cherry.de>", "list_archive_url": null, "date": "2026-04-22T13:25:55", "name": "Couple of clang warnings for Rockchip boards", "commit_ref": null, "pull_url": null, "state": "rfc", "archived": false, "hash": "3ee1145e7a06d7e39afdf860f6e5db91638c810c", "submitter": { "id": 88462, "url": "http://patchwork.ozlabs.org/api/people/88462/?format=api", "name": "Quentin Schulz", "email": "quentin.schulz@cherry.de" }, "delegate": { "id": 3651, "url": "http://patchwork.ozlabs.org/api/users/3651/?format=api", "username": "trini", "first_name": "Tom", "last_name": "Rini", "email": "trini@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/f8f4e639-0e73-4d14-828a-92dbfe5526ba@cherry.de/mbox/", "series": [ { "id": 501012, "url": "http://patchwork.ozlabs.org/api/series/501012/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=501012", "date": "2026-04-22T13:25:55", "name": "Couple of clang warnings for Rockchip boards", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501012/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226487/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226487/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=cherry.de header.i=@cherry.de header.a=rsa-sha256\n header.s=selector1 header.b=RJd5AToK;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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Chromebooks EC fails to build:\nIn file included from \n/home/qschulz/work/upstream/u-boot/drivers/misc/cros_ec.c:21:\nIn file included from \n/home/qschulz/work/upstream/u-boot/include/cros_ec.h:12:\n/home/qschulz/work/upstream/u-boot/include/ec_commands.h:3578:2: error: \nfield within 'struct ec_params_charge_state' is less aligned than \n'union ec_params_charge_state::(anonymous at \n/home/qschulz/work/upstream/u-boot/include/ec_commands.h:3578:2)' and is \nusually due to 'struct ec_params_charge_state' being packed, which can \nlead to unaligned accesses [-Werror,-Wunaligned-access]\n 3578 | union {\n | ^\n\nThe following\n\n\nseems to fix it. The upstream EC git repo \n(https://chromium.googlesource.com/chromiumos/platform/ec) has a commit \nwith more changes, see 65da9cc08766 (\"include/ec_commands.h: Fix \nunaligned access warnings\"). It doesn't apply cleanly (and I haven't \nlooked into other patches to backport for this to apply cleanly). I'm \nnot sure what we're supposed to do here? I also don't have a Chromebook \nto test.\n\n2. RK3528, RK3576 and RK3588 boards fail with (replace rk3528 in path \nfor the other SoCs)\n\n/home/qschulz/work/upstream/u-boot/arch/arm/mach-rockchip/rk3528/rk3528.c:98:45: \nerror: value size does not match register size specified by the \nconstraint and modifier [-Werror,-Wasm-operand-widths]\n 98 | asm volatile(\"msr cntfrq_el0, %0\" : : \"r\" \n(CONFIG_COUNTER_FREQUENCY));\n | ^\ninclude/generated/autoconf.h:372:34: note: expanded from macro \n'CONFIG_COUNTER_FREQUENCY'\n 372 | #define CONFIG_COUNTER_FREQUENCY 24000000\n | ^\n/home/qschulz/work/upstream/u-boot/arch/arm/mach-rockchip/rk3528/rk3528.c:98:32: \nnote: use constraint modifier \"w\"\n 98 | asm volatile(\"msr cntfrq_el0, %0\" : : \"r\" \n(CONFIG_COUNTER_FREQUENCY));\n | ^~\n | %w0\n\nNote that all Rockchip SoCs have CONFIG_COUNTER_FREQUENCY set to 24000000.\n\nThe cntfrq_el0 register is 64b \n(https://developer.arm.com/documentation/ddi0601/2026-03/AArch64-Registers/CNTFRQ-EL0--Counter-timer-Frequency-Register?lang=en), \nthough the top 32b are reserved. Android decided to ignore this warning \nin the Little Kernel with \nhttps://android.googlesource.com/kernel/lk/+/923541d4c23565a47d020d84202a6f77d22fc149%5E%21/.\n\nI tried to follow clang's recommendation and switch this to %w0 but it \nfails with:\n\n/tmp/rk3588-a0a4b8.s: Assembler messages:\n/tmp/rk3588-a0a4b8.s:87: Error: operand mismatch -- `msr cntfrq_el0,w9'\n/tmp/rk3588-a0a4b8.s:87: Info: did you mean this?\n/tmp/rk3588-a0a4b8.s:87: Info: \tmsr cntfrq_el0, x9\nclang: error: assembler command failed with exit code 1 (use -v to see \ninvocation)\n\nI tried casting CONFIG_COUNTER_FREQUENCY into a u64 and it builds and no \nmagic smoke when booting a board. Whether this is the proper fix, I \ndon't know, but the warning is then gone. We could also decide to ignore \nthe warning like for Android's Little Kernel (where and how much this is \nused is unclear as the repo isn't seeing much activity).\n\nThe register documentation indicates this is not used by the hardware at \nall, so even if it was broken, we probably wouldn't see a difference?\n\n3. Boards building USB TCPM fail with\n\nIn file included from \n/home/qschulz/work/upstream/u-boot/drivers/usb/tcpm/tcpm-uclass.c:12:\nIn file included from \n/home/qschulz/work/upstream/u-boot/include/usb/tcpm.h:12:\n/home/qschulz/work/upstream/u-boot/include/usb/pd.h:212:2: error: field \nwithin 'struct pd_message' is less aligned than 'union \npd_message::(anonymous at \n/home/qschulz/work/upstream/u-boot/include/usb/pd.h:212:2)' and is \nusually due to 'struct pd_message' being packed, which can lead to \nunaligned accesses [-Werror,-Wunaligned-access]\n 212 | union {\n | ^\n\nThis file is apparently adapted from upstream Linux, where the code is \nidentical for that struct. So not sure what to do here.\n\nCheers,\nQuentin", "diff": "diff --git a/include/ec_commands.h b/include/ec_commands.h\nindex 23597d28b2c..c5f9777c0c7 100644\n--- a/include/ec_commands.h\n+++ b/include/ec_commands.h\n@@ -3575,7 +3575,7 @@ enum charge_state_params {\n\n struct __ec_todo_packed ec_params_charge_state {\n \tuint8_t cmd;\t\t\t\t/* enum charge_state_command */\n-\tunion {\n+\tunion __ec_todo_packed {\n \t\tstruct __ec_align1 {\n \t\t\t/* no args */\n \t\t} get_state;\n", "prefixes": [] }