From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794064139; b=hEJhZ6ab8OdqCiLkV910V/IIlShWhNv73jPHihg44uhvefFokBBzgKGcARf9Z0SMHNWj 4gIsKFrQUeLc9yw8FnRpd+kecYNfdjwHbNwYh/76Qs55oCheTno97MEzaY0vvNDKimYAv kcu1mWARyp/weRenQON24xg522URm+IOVpYnDcQmEd5XdhLTMj9kkDGhGvtnINdaK2lDZ 9Mg2dInMVi5voFuRUg/rKRv8a3cpCb7PY9Ry27LO3m/PaIywy09IKdG4ln3SrduErDQY8 okZ0teJnlasoiZ0tz0g7zsqKHtQUVuWRECmmkCsPPaXvcdArErTelnPncgY2kgnKagA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794064139; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=yjCoduKeDqhIuB+6HmbZ93Zf7fE9zLhmGXZmXib7qyA=; b=wpMon15t23DqruEoP+rPa/02CBsd1maRL66+FwreiPVR4xthfA3VT0eF3TWimCgdvki9 /jywLfWH7j29uhfWWw7QjW85l7Lm75BL0mtiVU2tRqNXG7Y7fRV6LEUUg/V+ldh5Rc+h7 +ILvK0MihDtvyEbYnKuVkQleCLlGufyS4KpBcCFG0KjCeySFstWsq5OUSLRyqndCithTe 7QUKTDGeBSapqX5/9YaBF3ndNvmTbVEQubsM/mo97U9DDp7HWYVsSeyD5X9Enfp4WMYSd szYQEkNub9GlEaYNgvhnOv3BcdGeelu1D/slbRA0+5CYtPQiuHIQnxMlcKv1CEusr6A== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=ncr2FFN0; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 52EA8606A33F; Sat, 7 Nov 2026 15:08:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=ncr2FFN0 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 04ACE1F0089F; Sat, 7 Nov 2026 15:08:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794064139; bh=yjCoduKeDqhIuB+6HmbZ93Zf7fE9zLhmGXZmXib7qyA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=ncr2FFN0ue/Fp2plQP23mlcZ2TeF5FGDiDf7Gt/v9cNglEz1EhtTHhnhA/lZzsugC EiqcEB0nIa1sV8wqt53hEHbMEkKob47Ar/bOgVj9aMOqSRarwHz53bsXwSXJ15Z61Z IWur/pM2cwNw+pd+DJL4SwKq3i0f+M3Fhvh60I+8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tiezhu Yang , Huacai Chen , Namhyung Kim , Bibo Mao , Huacai Chen , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 7.3 0288/1257] perf loongarch: Fix discarded const qualifier in _get_field() Date: Sat, 7 Nov 2026 08:43:04 -0500 Message-ID: <20261107134947.423937905@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tiezhu Yang [ Upstream commit ed1293302f811fa709897d4a90ad78592938e4aa ] When building perf on LoongArch, the following compilation errors occur: CC arch/loongarch/util/header.o arch/loongarch/util/header.c: In function '_get_field': arch/loongarch/util/header.c:31:15: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 31 | line2 = strrchr(line, ' '); | ^ arch/loongarch/util/header.c:36:12: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 36 | nl = strrchr(line, '\n'); | ^ cc1: all warnings being treated as errors Declare 'line2' and 'nl' as const char * to ensure type safety. In modern glibc versions, strrchr() returns a 'const char *' if the input string is const. This is similar to commit 7378b6656aa4 ("perf riscv: Fix discarded const qualifier in _get_field()"). Fixes: 492ac37fa38faf52 ("perf kvm: Add kvm-stat for loongarch64") Signed-off-by: Tiezhu Yang Acked-by: Huacai Chen Acked-by: Namhyung Kim Cc: Bibo Mao Cc: Huacai Chen Cc: stable@vger.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/arch/loongarch/util/header.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/arch/loongarch/util/header.c b/tools/perf/arch/loongarch/util/header.c index 0c6d823334a21..46f53a74f71e8 100644 --- a/tools/perf/arch/loongarch/util/header.c +++ b/tools/perf/arch/loongarch/util/header.c @@ -26,7 +26,7 @@ static char *_get_field(const char *line) { - char *line2, *nl; + const char *line2, *nl; line2 = strrchr(line, ' '); if (!line2) -- 2.53.0