From patchwork Tue Jan 12 19:12:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nathan Chancellor X-Patchwork-Id: 12014607 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=-20.8 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,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 46C6DC433DB for ; Tue, 12 Jan 2021 19:13:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 03825230F9 for ; Tue, 12 Jan 2021 19:13:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727622AbhALTNS (ORCPT ); Tue, 12 Jan 2021 14:13:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41874 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726664AbhALTNS (ORCPT ); Tue, 12 Jan 2021 14:13:18 -0500 Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB024C061575; Tue, 12 Jan 2021 11:12:37 -0800 (PST) Received: by mail-qk1-x72e.google.com with SMTP id 22so2895199qkf.9; Tue, 12 Jan 2021 11:12:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Q26h93gSS0y9iR+Qm0MkHYb24X55fLtSwxVQagnZbx8=; b=cpxV9/KULU/QTHufkILmQ5sNOh25AE7CPuNpwLyyEONMdKty6a6etdY25354NNYe9Y fMnwt0fXnXouOqMn8LhEwmbSg2K5ccTi7+tLRZH2bkzApX+2coDyIgWyLm7s/uAVG7kr BRsTt5tFdUv4f198LQxZ8KvqLn62KVGfkhOTLGXZesf/kyEbnr7lUkB5vnAGjD6cOoBv OkP4DshKIUhtJx4dI1W3724iqSoMAyNtiU9wil+YMxqSloNo5iLUSA52w9YSpv5Bf6gz c/dvsMkB2992CAVkuH5ak0GFGxeag2KmMWCht6DBiIhS8WhO87e2WpuTCv/OEEb/+axK aYZw== 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:mime-version :content-transfer-encoding; bh=Q26h93gSS0y9iR+Qm0MkHYb24X55fLtSwxVQagnZbx8=; b=M+vUKnGhqhWA4L9ZDQ8coyLVplWI58eXvb3dFgbr9fhcBvSMMuFedpVureYklLfXN1 MXGps8l5eSg7kagqtg1bQnGgj4yf9IOHXHWyeyBqr3pv0+Y4PPVeaUAdTKZ7NM1OKg9r cU5teAMjYYBswF0EmVXUBTT+NmKLh0GBLAOHnEUiB2p41XA3jhR6w2GX7QfmhCKA6lK6 j50hAPnn7ZdpHWZuIPrJJvrcI0BnJVAlkwUNyRCGkv1EevU4iZXdQGNHfkiMGd9z7sT7 LG8QM7TNBfYVNmkeuq911Ca6/g6E2WlhM1eGTTD1Nv8wcG3wEFE4/VUyLocAkipf2meJ zF9g== X-Gm-Message-State: AOAM532chSHoGTcsMWsM5zo9m/PiFO7GTgavSgnhSMe4hfRgu9Btydg7 RUh90AwIAaZr4IhlLV/Sspg= X-Google-Smtp-Source: ABdhPJzltk2bVl0P/Jw4bElA4gsCXcb3W8L4e7Evd9K3CYkp7UT8AjEXsDMdfDM370Ssk8naPBZYVw== X-Received: by 2002:ae9:de45:: with SMTP id s66mr866170qkf.197.1610478756993; Tue, 12 Jan 2021 11:12:36 -0800 (PST) Received: from localhost.localdomain ([2604:1380:45f1:1d00::1]) by smtp.gmail.com with ESMTPSA id u5sm1861674qka.86.2021.01.12.11.12.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 11:12:36 -0800 (PST) From: Nathan Chancellor To: Andy Gross , Bjorn Andersson , Vinod Koul Cc: Dan Williams , Nick Desaulniers , linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Nathan Chancellor Subject: [PATCH] dmaengine: qcom: Always inline gpi_update_reg Date: Tue, 12 Jan 2021 12:12:14 -0700 Message-Id: <20210112191214.1264793-1-natechancellor@gmail.com> X-Mailer: git-send-email 2.30.0 MIME-Version: 1.0 X-Patchwork-Bot: notify Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org When building with CONFIG_UBSAN_UNSIGNED_OVERFLOW, clang decides not to inline gpi_update_reg, which causes a linkage failure around __bad_mask: ld.lld: error: undefined symbol: __bad_mask >>> referenced by bitfield.h:119 (include/linux/bitfield.h:119) >>> dma/qcom/gpi.o:(gpi_update_reg) in archive drivers/built-in.a >>> referenced by bitfield.h:119 (include/linux/bitfield.h:119) >>> dma/qcom/gpi.o:(gpi_update_reg) in archive drivers/built-in.a If gpi_update_reg is not inlined, the mask value will not be known at compile time so the check in field_multiplier stays in the final object file, causing the above linkage failure. Always inline gpi_update_reg so that this check can never fail. Fixes: 5d0c3533a19f ("dmaengine: qcom: Add GPI dma driver") Link: https://github.com/ClangBuiltLinux/linux/issues/1243 Signed-off-by: Nathan Chancellor --- drivers/dma/qcom/gpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) base-commit: 7c53f6b671f4aba70ff15e1b05148b10d58c2837 diff --git a/drivers/dma/qcom/gpi.c b/drivers/dma/qcom/gpi.c index 1a0bf6b0567a..e48eb397f433 100644 --- a/drivers/dma/qcom/gpi.c +++ b/drivers/dma/qcom/gpi.c @@ -584,7 +584,7 @@ static inline void gpi_write_reg_field(struct gpii *gpii, void __iomem *addr, gpi_write_reg(gpii, addr, val); } -static inline void +static __always_inline void gpi_update_reg(struct gpii *gpii, u32 offset, u32 mask, u32 val) { void __iomem *addr = gpii->regs + offset;