From patchwork Wed Jun 29 22:53:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marijn Suijten X-Patchwork-Id: 585867 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD75ACCA47E for ; Wed, 29 Jun 2022 22:53:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230482AbiF2Wxu (ORCPT ); Wed, 29 Jun 2022 18:53:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35786 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230359AbiF2Wxp (ORCPT ); Wed, 29 Jun 2022 18:53:45 -0400 Received: from relay06.th.seeweb.it (relay06.th.seeweb.it [5.144.164.167]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3E202559B for ; Wed, 29 Jun 2022 15:53:43 -0700 (PDT) Received: from Marijn-Arch-PC.localdomain (94-209-165-62.cable.dynamic.v4.ziggo.nl [94.209.165.62]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r2.th.seeweb.it (Postfix) with ESMTPSA id DB5FA3F796; Thu, 30 Jun 2022 00:53:41 +0200 (CEST) From: Marijn Suijten To: phone-devel@vger.kernel.org, Dmitry Baryshkov , Stephen Boyd Cc: ~postmarketos/upstreaming@lists.sr.ht, AngeloGioacchino Del Regno , Konrad Dybcio , Martin Botka , Jami Kettunen , Marijn Suijten , Michael Turquette , Rob Clark , Abhinav Kumar , Sean Paul , David Airlie , Daniel Vetter , Rajeev Nandan , Vladimir Lypak , Jonathan Marek , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH v3 05/11] drm/msm/dsi_phy_28nm_8960: Use stack memory for temporary clock names Date: Thu, 30 Jun 2022 00:53:25 +0200 Message-Id: <20220629225331.357308-6-marijn.suijten@somainline.org> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220629225331.357308-1-marijn.suijten@somainline.org> References: <20220629225331.357308-1-marijn.suijten@somainline.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The clock names formatted into the hw_clk's init structure are only used for the duration of the registration function where they are kstrdup'ed, making it unnecessary to keep the allocations alive for the duration of the device (through devm). Just like the other DSI PHY PLL clock trees, use a stack-local char array and save on memory outside of the pll_28nm_register function. Signed-off-by: Marijn Suijten Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c index af630b8eb9f3..24bac401b210 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c @@ -383,7 +383,7 @@ static int dsi_28nm_pll_restore_state(struct msm_dsi_phy *phy) static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **provided_clocks) { - char *clk_name, *parent_name, *vco_name; + char clk_name[32], parent_name[32], vco_name[32]; struct clk_init_data vco_init = { .parent_data = &(const struct clk_parent_data) { .fw_name = "ref", @@ -404,18 +404,6 @@ static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **prov if (!bytediv) return -ENOMEM; - vco_name = devm_kzalloc(dev, 32, GFP_KERNEL); - if (!vco_name) - return -ENOMEM; - - parent_name = devm_kzalloc(dev, 32, GFP_KERNEL); - if (!parent_name) - return -ENOMEM; - - clk_name = devm_kzalloc(dev, 32, GFP_KERNEL); - if (!clk_name) - return -ENOMEM; - snprintf(vco_name, 32, "dsi%dvco_clk", pll_28nm->phy->id); vco_init.name = vco_name;