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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 A9C33C64E8A for ; Mon, 16 Nov 2020 17:44:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 76B8522265 for ; Mon, 16 Nov 2020 17:44:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="jjlCCiNI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388025AbgKPRny (ORCPT ); Mon, 16 Nov 2020 12:43:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387797AbgKPRmA (ORCPT ); Mon, 16 Nov 2020 12:42:00 -0500 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E482BC0613CF for ; Mon, 16 Nov 2020 09:41:59 -0800 (PST) Received: by mail-wr1-x441.google.com with SMTP id b6so19669485wrt.4 for ; Mon, 16 Nov 2020 09:41:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wbt6Bt9xb+nEOL+sC88FIyMMDCRwxeU6Sb1wX9bISpg=; b=jjlCCiNIxsXpA+Jb25gKyWLrqTzlSWECuVTeXlKwqjUFgAiMxr2Kg1XsOu2FBDybwM wlRkZCxOJb/RWj0i6Uh14Z8mZESJ4jsc5a5m97NFCFK10sB7oe7LWCpmkBLNACoAEDGT XsH/kfY8Xy6dWH0+U1ERkrX4+wT77JWiLWRTDYONESCjRkl7SpP+eTUmq5S69un0s8x8 tZlttEn9Mofc1vKl82qQa3htdJRCyrK6jakgRDCgIgeVn8u/bxzK6iGrPvoyWYFXKCOY U/LNolmUxpjXqFf14X66y15Q1pU0Ul51bCFk/mWMfRsyW4W+haj5BpTbHXJOfr3btsFP p8rQ== 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=wbt6Bt9xb+nEOL+sC88FIyMMDCRwxeU6Sb1wX9bISpg=; b=lb9Kazi5jOIzKIpy679bQuquc35LFE13v1LtWh3CBTI8BDvzIX4UFQ9fBjU2SSEEHc BtE6xA3LLq6kgU8Rng3SknauBTTSyIsOzbt3Za6bmgfwBv9NFlDyprjx1FCly1rIK1Rx +XjDlY6zyKC5SnuTNuakBnCe1Q9P5a9H3xhfR+rHWHLcPGt/J+uaNZjW/ITWg3KsvYja i14WkfkUSOYvNM2zC3RavIs8lrdJZJE0hjTyrUq0g4OvvL3Ps6t1lSwghyxfdxOlH/VT kZLftfEmo649VbXOezLjCbdDM0EVVHG2z1nvSoDfUwrs0qUVDgdaozJ+h1oBoPy815OP 9TAg== X-Gm-Message-State: AOAM533kUzwCnptxAppHF2yJXjqkOcqA7jySjSMhImOGgwCkSx0PWWZp ZOcfxW1RwZrGCwcQD71yTHQ4TQ== X-Google-Smtp-Source: ABdhPJxixVTfoinJ+pbMo9gBUuK0pz4maqlEmMuGBMn7mSWL5CMNmdd/xIpmu0aAD8lk+4XYjkVVsw== X-Received: by 2002:adf:8521:: with SMTP id 30mr20985238wrh.265.1605548518655; Mon, 16 Nov 2020 09:41:58 -0800 (PST) Received: from dell.default ([91.110.221.159]) by smtp.gmail.com with ESMTPSA id n10sm24667224wrx.9.2020.11.16.09.41.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Nov 2020 09:41:58 -0800 (PST) From: Lee Jones To: lee.jones@linaro.org Cc: linux-kernel@vger.kernel.org, David Airlie , Daniel Vetter , =?UTF-8?q?Christian=20K=C3=B6nig?= , Nirmoy Das , dri-devel@lists.freedesktop.org Subject: [PATCH 27/42] drm/selftests/test-drm_mm: Mark 'hole_end' as always_unused Date: Mon, 16 Nov 2020 17:40:57 +0000 Message-Id: <20201116174112.1833368-28-lee.jones@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201116174112.1833368-1-lee.jones@linaro.org> References: <20201116174112.1833368-1-lee.jones@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In the macro drm_mm_for_each_hole() 'hole_end' is provided as a container for 'hole_start + pos->hole_size', but is not utilised in this use-case. We cannot simply delete the variable, so here we tell the compiler that we're intentionally discarding the read value. Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/selftests/test-drm_mm.c: In function ‘assert_no_holes’: drivers/gpu/drm/selftests/test-drm_mm.c:57:18: warning: variable ‘hole_end’ set but not used [-Wunused-but-set-variable] Cc: David Airlie Cc: Daniel Vetter Cc: "Christian König" Cc: Nirmoy Das Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones --- drivers/gpu/drm/selftests/test-drm_mm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/selftests/test-drm_mm.c index 95e212a9a74d2..b768b53c4aee3 100644 --- a/drivers/gpu/drm/selftests/test-drm_mm.c +++ b/drivers/gpu/drm/selftests/test-drm_mm.c @@ -54,7 +54,7 @@ static int igt_sanitycheck(void *ignored) static bool assert_no_holes(const struct drm_mm *mm) { struct drm_mm_node *hole; - u64 hole_start, hole_end; + u64 hole_start, __always_unused hole_end; unsigned long count; count = 0; -- 2.25.1