From patchwork Fri May 15 06:56:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ian Rogers X-Patchwork-Id: 1290884 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=bpf-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=EZrZEXW7; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49NfMt1VFcz9sTc for ; Fri, 15 May 2020 16:56:41 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726716AbgEOG4i (ORCPT ); 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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc:content-transfer-encoding; bh=BlBgjK5xziAM5vwiVDuTtOoE4PbK5TxWadJH4JBlKYM=; b=uTubugOa0WvTsaKzAFPDgWSMjKlk4u28yWKNpoaCuCPFfMTwDcx/a4CC8IjUBQJN0R QwejCMQcEygolLyngVjmrqo/ISoUekbuSngYqZovBJZArSsTVp8G8ROJE5ZR7HmxUW2V hNBEYpW0HdSIHjG6lrv543+Op1dDNjjvF6IwQ0qgk0ABM7JQUxnaCby00lg3Igs8yqC6 rwENqrOTLyGvA5dg63pey7CS+2kOGme3hE9WsB2+F+Oqr0uN6VsFhqYQbRg47l7H/51x 9Lq02GTumS5YBijs9/5pD4cGkE0rNagW+adojl/QuqZEyC6yqP5OXf1yRk7lv9tUSHL0 tW2w== X-Gm-Message-State: AOAM533bzfBAwQaUy82BRRpG+3K9qIMezhPTfXebyjumW1Lh/pYFpfki hxzGRBFXVWIhnYbjKwSCclDPtOYSUCdf X-Google-Smtp-Source: ABdhPJz8XtegKSh8yOMx1iWS4vUX0ml1o219kpFcONA39sezAoXcY+JdpGmDcGCC+GD5zV3AYR4TQQRMVetq X-Received: by 2002:a0c:8262:: with SMTP id h89mr1968365qva.173.1589525796081; Thu, 14 May 2020 23:56:36 -0700 (PDT) Date: Thu, 14 May 2020 23:56:19 -0700 In-Reply-To: <20200515065624.21658-1-irogers@google.com> Message-Id: <20200515065624.21658-4-irogers@google.com> Mime-Version: 1.0 References: <20200515065624.21658-1-irogers@google.com> X-Mailer: git-send-email 2.26.2.761.g0e0b3e54be-goog Subject: [PATCH 3/8] libbpf hashmap: Fix signedness warnings From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , John Fastabend , KP Singh , Kajol Jain , Andi Kleen , John Garry , Jin Yao , Kan Liang , Cong Wang , Kim Phillips , Adrian Hunter , Leo Yan , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org Cc: Stephane Eranian , Ian Rogers Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Fixes the following warnings: hashmap.c: In function ‘hashmap__clear’: hashmap.h:150:20: error: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Werror=sign-compare] 150 | for (bkt = 0; bkt < map->cap; bkt++) \ hashmap.c: In function ‘hashmap_grow’: hashmap.h:150:20: error: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Werror=sign-compare] 150 | for (bkt = 0; bkt < map->cap; bkt++) \ Signed-off-by: Ian Rogers --- tools/lib/bpf/hashmap.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/tools/lib/bpf/hashmap.c b/tools/lib/bpf/hashmap.c index cffb96202e0d..a405dad068f5 100644 --- a/tools/lib/bpf/hashmap.c +++ b/tools/lib/bpf/hashmap.c @@ -60,7 +60,7 @@ struct hashmap *hashmap__new(hashmap_hash_fn hash_fn, void hashmap__clear(struct hashmap *map) { struct hashmap_entry *cur, *tmp; - int bkt; + size_t bkt; hashmap__for_each_entry_safe(map, cur, tmp, bkt) { free(cur); @@ -100,8 +100,7 @@ static int hashmap_grow(struct hashmap *map) struct hashmap_entry **new_buckets; struct hashmap_entry *cur, *tmp; size_t new_cap_bits, new_cap; - size_t h; - int bkt; + size_t h, bkt; new_cap_bits = map->cap_bits + 1; if (new_cap_bits < HASHMAP_MIN_CAP_BITS)