From patchwork Wed Mar 16 16:53:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 12782982 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 CB2D0C433F5 for ; Wed, 16 Mar 2022 16:53:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237304AbiCPQzE (ORCPT ); Wed, 16 Mar 2022 12:55:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356913AbiCPQzA (ORCPT ); Wed, 16 Mar 2022 12:55:00 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D78631932; Wed, 16 Mar 2022 09:53:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1647449626; x=1678985626; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=+siQ0CJV8sIl5v5e72rj8Q6p8jCbZEt28U8U4nLaIAM=; b=HIfLVIf2VehsnzXvxHz6j9fzhLBsJ+xrOW/4C6Z8TWAxlwYDTaAj5tzH aoepSs3FjIbIMrsFcoPybEUJpEmnJ2r6AwOdWhsBAQ36sYvWh53Jpul67 zieJlLFJdLX1dwSiWQEJdIoYrREDSYsGamkKjZDgr8+WnqkU45pmLVixW CaP8+h2j5RkpfyUQ0Sb1jyYyigdmQIBDGy5C9fqzz18aZ3+ERtEYDT79D vtkqai8GYpYLcxsZKayJuZL2Gq6Tn8mMcyOHswDI6A5R1xcem2py3lKzU NAM9hCyvdzx+mEZKuObAXfIhnfGMXHA9j6o5Z7/8aAtgiQ+XEwFtSQrvB Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10288"; a="256614327" X-IronPort-AV: E=Sophos;i="5.90,187,1643702400"; d="scan'208";a="256614327" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2022 09:53:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,187,1643702400"; d="scan'208";a="598790953" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga008.fm.intel.com with ESMTP; 16 Mar 2022 09:53:34 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 59E14107; Wed, 16 Mar 2022 18:53:54 +0200 (EET) From: Andy Shevchenko To: Greg Kroah-Hartman , Heiner Kallweit , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Cc: Helge Deller , Andy Shevchenko Subject: [PATCH v2 1/2] staging: fbtft: Constify buf parameter in fbtft_dbg_hex() Date: Wed, 16 Mar 2022 18:53:50 +0200 Message-Id: <20220316165351.58107-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org It's obvious that we don't and shouldn't modify buffer that is about to be dumped. Constify parameter in fbtft_dbg_hex() to make it clear. Fixes: c296d5f9957c ("staging: fbtft: core support") Signed-off-by: Andy Shevchenko --- v2: new patch to fix a warning (Greg) drivers/staging/fbtft/fbtft-core.c | 2 +- drivers/staging/fbtft/fbtft.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index f2684d2d6851..6dc77895a87c 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -49,7 +49,7 @@ int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc) EXPORT_SYMBOL(fbtft_write_buf_dc); void fbtft_dbg_hex(const struct device *dev, int groupsize, - void *buf, size_t len, const char *fmt, ...) + const void *buf, size_t len, const char *fmt, ...) { va_list args; static char textbuf[512]; diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h index 55677efc0138..c3d8b2aae607 100644 --- a/drivers/staging/fbtft/fbtft.h +++ b/drivers/staging/fbtft/fbtft.h @@ -240,7 +240,7 @@ struct fbtft_par { int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc); __printf(5, 6) void fbtft_dbg_hex(const struct device *dev, int groupsize, - void *buf, size_t len, const char *fmt, ...); + const void *buf, size_t len, const char *fmt, ...); struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, struct device *dev, struct fbtft_platform_data *pdata);