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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/imx/ipuv3-plane.c: In function ‘ipu_planes_assign_pre’: drivers/gpu/drm/imx/ipuv3-plane.c:746:42: warning: variable ‘crtc_state’ set but not used [-Wunused-but-set-variable] Cc: Philipp Zabel Cc: David Airlie Cc: Daniel Vetter Cc: Shawn Guo Cc: Sascha Hauer Cc: Pengutronix Kernel Team Cc: Fabio Estevam Cc: NXP Linux Team Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones --- drivers/gpu/drm/imx/ipuv3-plane.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 8a4235d9d9f1e..acc0a3ce4992f 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -743,7 +743,7 @@ bool ipu_plane_atomic_update_pending(struct drm_plane *plane) int ipu_planes_assign_pre(struct drm_device *dev, struct drm_atomic_state *state) { - struct drm_crtc_state *old_crtc_state, *crtc_state; + struct drm_crtc_state *old_crtc_state, __always_unused *crtc_state; struct drm_plane_state *plane_state; struct ipu_plane_state *ipu_state; struct ipu_plane *ipu_plane; -- 2.25.1 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=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 4C988C56201 for ; Thu, 5 Nov 2020 14:52:22 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C917A20719 for ; Thu, 5 Nov 2020 14:52:21 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Thu, 05 Nov 2020 06:52:18 -0800 (PST) Received: from dell.default ([91.110.221.242]) by smtp.gmail.com with ESMTPSA id f5sm2631243wmh.16.2020.11.05.06.52.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2020 06:52:17 -0800 (PST) From: Lee Jones To: lee.jones@linaro.org Subject: [PATCH 03/19] gpu: drm: imx: ipuv3-plane: Mark 'crtc_state' as __always_unused Date: Thu, 5 Nov 2020 14:45:01 +0000 Message-Id: <20201105144517.1826692-4-lee.jones@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201105144517.1826692-1-lee.jones@linaro.org> References: <20201105144517.1826692-1-lee.jones@linaro.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , Sascha Hauer , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, NXP Linux Team , Shawn Guo , Pengutronix Kernel Team Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" SW4gdGhlIG1hY3JvIGZvcl9lYWNoX29sZG5ld19jcnRjX2luX3N0YXRlKCkgJ2NydGNfc3RhdGUn IGlzIHByb3ZpZGVkCmFzIGEgY29udGFpbmVyIGZvciBzdGF0ZS0+Y3J0Y3NbaV0ubmV3X3N0YXRl LCBidXQgaXMgbm90IHV0aWxpc2VkIGluCnRoaXMgdXNlLWNhc2UuICBXZSBjYW5ub3Qgc2ltcGx5 IGRlbGV0ZSB0aGUgdmFyaWFibGUsIHNvIGhlcmUgd2UgdGVsbAp0aGUgY29tcGlsZXIgdGhhdCB3 ZSdyZSBpbnRlbnRpb25hbGx5IGRpc2NhcmRpbmcgdGhlIHJlYWQgdmFsdWUuCgpGaXhlcyB0aGUg Zm9sbG93aW5nIFc9MSBrZXJuZWwgYnVpbGQgd2FybmluZyhzKToKCiBkcml2ZXJzL2dwdS9kcm0v aW14L2lwdXYzLXBsYW5lLmM6IEluIGZ1bmN0aW9uIOKAmGlwdV9wbGFuZXNfYXNzaWduX3ByZeKA mToKIGRyaXZlcnMvZ3B1L2RybS9pbXgvaXB1djMtcGxhbmUuYzo3NDY6NDI6IHdhcm5pbmc6IHZh cmlhYmxlIOKAmGNydGNfc3RhdGXigJkgc2V0IGJ1dCBub3QgdXNlZCBbLVd1bnVzZWQtYnV0LXNl dC12YXJpYWJsZV0KCkNjOiBQaGlsaXBwIFphYmVsIDxwLnphYmVsQHBlbmd1dHJvbml4LmRlPgpD YzogRGF2aWQgQWlybGllIDxhaXJsaWVkQGxpbnV4LmllPgpDYzogRGFuaWVsIFZldHRlciA8ZGFu aWVsQGZmd2xsLmNoPgpDYzogU2hhd24gR3VvIDxzaGF3bmd1b0BrZXJuZWwub3JnPgpDYzogU2Fz Y2hhIEhhdWVyIDxzLmhhdWVyQHBlbmd1dHJvbml4LmRlPgpDYzogUGVuZ3V0cm9uaXggS2VybmVs IFRlYW0gPGtlcm5lbEBwZW5ndXRyb25peC5kZT4KQ2M6IEZhYmlvIEVzdGV2YW0gPGZlc3RldmFt QGdtYWlsLmNvbT4KQ2M6IE5YUCBMaW51eCBUZWFtIDxsaW51eC1pbXhAbnhwLmNvbT4KQ2M6IGRy aS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKU2lnbmVkLW9mZi1ieTogTGVlIEpvbmVzIDxs ZWUuam9uZXNAbGluYXJvLm9yZz4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vaW14L2lwdXYzLXBsYW5l LmMgfCAyICstCiAxIGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRpb24oLSkK CmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaW14L2lwdXYzLXBsYW5lLmMgYi9kcml2ZXJz L2dwdS9kcm0vaW14L2lwdXYzLXBsYW5lLmMKaW5kZXggOGE0MjM1ZDlkOWYxZS4uYWNjMGEzY2U0 OTkyZiAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2lteC9pcHV2My1wbGFuZS5jCisrKyBi L2RyaXZlcnMvZ3B1L2RybS9pbXgvaXB1djMtcGxhbmUuYwpAQCAtNzQzLDcgKzc0Myw3IEBAIGJv b2wgaXB1X3BsYW5lX2F0b21pY191cGRhdGVfcGVuZGluZyhzdHJ1Y3QgZHJtX3BsYW5lICpwbGFu ZSkKIGludCBpcHVfcGxhbmVzX2Fzc2lnbl9wcmUoc3RydWN0IGRybV9kZXZpY2UgKmRldiwKIAkJ CSAgc3RydWN0IGRybV9hdG9taWNfc3RhdGUgKnN0YXRlKQogewotCXN0cnVjdCBkcm1fY3J0Y19z dGF0ZSAqb2xkX2NydGNfc3RhdGUsICpjcnRjX3N0YXRlOworCXN0cnVjdCBkcm1fY3J0Y19zdGF0 ZSAqb2xkX2NydGNfc3RhdGUsIF9fYWx3YXlzX3VudXNlZCAqY3J0Y19zdGF0ZTsKIAlzdHJ1Y3Qg ZHJtX3BsYW5lX3N0YXRlICpwbGFuZV9zdGF0ZTsKIAlzdHJ1Y3QgaXB1X3BsYW5lX3N0YXRlICpp cHVfc3RhdGU7CiAJc3RydWN0IGlwdV9wbGFuZSAqaXB1X3BsYW5lOwotLSAKMi4yNS4xCgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFp bGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK