From owner-svn-src-head@freebsd.org Mon Sep 7 06:27:19 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 34E373EA62D; Mon, 7 Sep 2020 06:27:19 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BlJGv0ftXz3SQd; Mon, 7 Sep 2020 06:27:19 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id EE1C41B3B2; Mon, 7 Sep 2020 06:27:18 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 0876RIN0033535; Mon, 7 Sep 2020 06:27:18 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 0876RISS033534; Mon, 7 Sep 2020 06:27:18 GMT (envelope-from avg@FreeBSD.org) Message-Id: <202009070627.0876RISS033534@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Mon, 7 Sep 2020 06:27:18 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r365395 - in head/sys: arm/allwinner/clkng dev/extres/clk X-SVN-Group: head X-SVN-Commit-Author: avg X-SVN-Commit-Paths: in head/sys: arm/allwinner/clkng dev/extres/clk X-SVN-Commit-Revision: 365395 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Sep 2020 06:27:19 -0000 Author: avg Date: Mon Sep 7 06:27:18 2020 New Revision: 365395 URL: https://svnweb.freebsd.org/changeset/base/365395 Log: aw_clk_nm: fix incorrect use of abs() abs() takes a (signed) int as input. Instead, it was used with unsigned 64-bit integers. So, add and use a new helper function to calculate a difference between two uint64_t-s. Reviewed by: manu MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D26307 Modified: head/sys/arm/allwinner/clkng/aw_clk_nm.c head/sys/dev/extres/clk/clk.h Modified: head/sys/arm/allwinner/clkng/aw_clk_nm.c ============================================================================== --- head/sys/arm/allwinner/clkng/aw_clk_nm.c Mon Sep 7 06:22:30 2020 (r365394) +++ head/sys/arm/allwinner/clkng/aw_clk_nm.c Mon Sep 7 06:27:18 2020 (r365395) @@ -153,7 +153,8 @@ aw_clk_nm_find_best(struct aw_clk_nm_sc *sc, uint64_t for (m = min_m; m <= max_m; ) { for (n = min_n; n <= max_n; ) { cur = fparent / n / m; - if (abs(*fout - cur) < abs(*fout - best)) { + if (clk_freq_diff(*fout, cur) < + clk_freq_diff(*fout, best)) { best = cur; *factor_n = n; *factor_m = m; @@ -196,7 +197,8 @@ aw_clk_nm_set_freq(struct clknode *clk, uint64_t fpare clknode_get_freq(p_clk, &fparent); cur = aw_clk_nm_find_best(sc, fparent, fout, &n, &m); - if (abs((*fout - cur)) < abs((*fout - best))) { + if (clk_freq_diff(*fout, cur) < + clk_freq_diff(*fout, best)) { best = cur; best_parent = p_idx; best_n = n; Modified: head/sys/dev/extres/clk/clk.h ============================================================================== --- head/sys/dev/extres/clk/clk.h Mon Sep 7 06:22:30 2020 (r365394) +++ head/sys/dev/extres/clk/clk.h Mon Sep 7 06:27:18 2020 (r365395) @@ -135,6 +135,12 @@ int clk_get_parent(clk_t clk, clk_t *parent); int clk_set_parent_by_clk(clk_t clk, clk_t parent); const char *clk_get_name(clk_t clk); +static inline uint64_t +clk_freq_diff(uint64_t x, uint64_t y) +{ + return (x >= y ? x - y : y - x); +} + #ifdef FDT int clk_set_assigned(device_t dev, phandle_t node); int clk_get_by_ofw_index(device_t dev, phandle_t node, int idx, clk_t *clk);