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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A852C433EF for ; Sat, 16 Apr 2022 11:15:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231621AbiDPLRo (ORCPT ); Sat, 16 Apr 2022 07:17:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231740AbiDPLRf (ORCPT ); Sat, 16 Apr 2022 07:17:35 -0400 Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 119861C93A; Sat, 16 Apr 2022 04:15:02 -0700 (PDT) Received: by mail-wm1-x330.google.com with SMTP id n126-20020a1c2784000000b0038e8af3e788so6286580wmn.1; Sat, 16 Apr 2022 04:15:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=uEhSMDHJtiuwdrj4dJJyu97KIVJOOD+nk/JiQfVUpZY=; b=dAvG/VUOiUi0sXwkQHoF+5NVAuiQMfKZcP1vqgjbrBMkds32W4S/eU8nfu9IqtPPMh RAk15ZLBRCzkyRWKkGVGJpTDzaSReBgjw+tB0S7YEMHgWwyGmXlgdNTTvue7wzattbWH 6/vvwJXkAwZvshn54gexQbZcinhpcI4xzvXg3WLmsxJL7y0INjgfbhPUZKVTWaVHWPZs hUMyU6iVTLqHlA8iSHqeZj8/wn8dBw8KYI6VkbA5YMmL7AkLk5GoX42GmWcNeitGY8lq 2LT9Kqd1NhYAjJYGdAgPh9rKu9HOKoKFVzLMflSZnl+3U1TQg8kn1sKUX7Tgj0kUP149 66lw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=uEhSMDHJtiuwdrj4dJJyu97KIVJOOD+nk/JiQfVUpZY=; b=qh+bPghtsryiXw4+hE19bCotLpBxtz2JaRNrlFiuKhuGQ+eq0uORnrneCqtN20KkA0 pxrhSD8aGp77LsVBoFU5FcVnc3cjhlkyBMZbdjiFYBD5uJz2xzdOwnT0FTn64qvyKgVh Z3bp3Nam2+/FOOJAE4EGz8/MSAsTjrzRQNbncRP3lu37Yhac7qKqFHWJuo1jSwwT4bVC ucX4eUIo0NlhqDm2YXguct9Z1+f6gqtc89c7mcbWuyPORjQ7g1ktHGFuRnGnzyWBHJ7a fO2/P39f+qsND0zvbx+GFTWUmEKz5+XAB0o6AusS8GcYbq5MAEjMG8zy1P6JIhM5yXnE K9Mw== X-Gm-Message-State: AOAM5315ULPVazWXMF/BwNha9rWcYZgaR8sKZuLUMfCRm0DFDK1VDBSJ K3OcSC1Xk5cXUdsYR9l3q4k= X-Google-Smtp-Source: ABdhPJxpvZFQaoNKdlYwE8qfxCxznE1bYGAnUYXCQP5HCgyf90I8tzuMZa59kHFBG+rR05HyfPdo7A== X-Received: by 2002:a05:600c:1e8a:b0:38e:d57d:a3fe with SMTP id be10-20020a05600c1e8a00b0038ed57da3femr7027147wmb.59.1650107700553; Sat, 16 Apr 2022 04:15:00 -0700 (PDT) Received: from alaa-emad ([197.57.90.163]) by smtp.gmail.com with ESMTPSA id 2-20020a1c1902000000b00380d3873d6asm7344196wmz.43.2022.04.16.04.15.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Apr 2022 04:15:00 -0700 (PDT) From: Alaa Mohamed To: outreachy@lists.linux.dev Cc: jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, ira.weiny@intel.com, eng.alaamohamedsoliman.am@gmail.com Subject: [PATCH v3] intel: igb: igb_ethtool.c: Convert kmap() to kmap_local_page() Date: Sat, 16 Apr 2022 13:14:57 +0200 Message-Id: <20220416111457.5868-1-eng.alaamohamedsoliman.am@gmail.com> X-Mailer: git-send-email 2.35.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Convert kmap() to kmap_local_page() With kmap_local_page(), the mapping is per thread, CPU local and not globally visible. Signed-off-by: Alaa Mohamed --- changes in V2: fix kunmap_local path value to take address of the mapped page. --- changes in V3: edit commit message to be clearer --- drivers/net/ethernet/intel/igb/igb_ethtool.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index 2a5782063f4c..c14fc871dd41 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -1798,14 +1798,14 @@ static int igb_check_lbtest_frame(struct igb_rx_buffer *rx_buffer, frame_size >>= 1; - data = kmap(rx_buffer->page); + data = kmap_local_page(rx_buffer->page); if (data[3] != 0xFF || data[frame_size + 10] != 0xBE || data[frame_size + 12] != 0xAF) match = false; - kunmap(rx_buffer->page); + kunmap_local(data); return match; } -- 2.35.2