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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kX4z4-0003GG-E4; Mon, 26 Oct 2020 16:04:34 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kX4z0-0003Dj-K0 for linux-arm-kernel@lists.infradead.org; Mon, 26 Oct 2020 16:04:31 +0000 Received: from localhost.localdomain (unknown [192.30.34.233]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 187C522400; Mon, 26 Oct 2020 16:04:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603728269; bh=uDS6EQ6XDAVPqHq9l70I5qJ+Qtzdx02DvVj8gxWSjlE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lK0ui8/k74N6LlTKJKTH9VBlF/ADoG3nreEBmHnKzRashCQLKzA4naQxKPCMvD6wn 5KE7IDI4AKeOEdfOG17exXhyIw4w82pWOHNVttYbg406XSBLGeYAcToCx1/Vzbs9jb pF8mfypTas5uYKYjVL6aSeEPWin7X9Ae3UVChRTU= From: Arnd Bergmann To: Catalin Marinas , Will Deacon Subject: [PATCH 4/4] arm64: traps: fix -Woverride-init warnings Date: Mon, 26 Oct 2020 17:03:31 +0100 Message-Id: <20201026160342.3705327-4-arnd@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201026160342.3705327-1-arnd@kernel.org> References: <20201026160342.3705327-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201026_120430_806297_A848AC43 X-CRM114-Status: GOOD ( 18.65 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Peter Maydell , Gavin Shan , Arnd Bergmann , Marc Zyngier , Dmitry Safonov <0x7f454c46@gmail.com>, Will Deacon , linux-kernel@vger.kernel.org, Mark Brown , James Morse , linux-arm-kernel@lists.infradead.org, Amit Daniel Kachhap , Dave Martin , Christoffer Dall Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann There are many warnings in this file when we re-enable the Woverride-init flag: arch/arm64/kernel/traps.c:704:26: warning: initialized field overwritten [-Woverride-init] 704 | [ESR_ELx_EC_UNKNOWN] = "Unknown/Uncategorized", | ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/traps.c:704:26: note: (near initialization for 'esr_class_str[0]') arch/arm64/kernel/traps.c:705:22: warning: initialized field overwritten [-Woverride-init] 705 | [ESR_ELx_EC_WFx] = "WFI/WFE", | ^~~~~~~~~ This is harmless since they are only informational strings, but it's easy to change the code to ignore missing initialization and instead warn about possible duplicate initializers. Fixes: 60a1f02c9e91 ("arm64: decode ESR_ELx.EC when reporting exceptions") Signed-off-by: Arnd Bergmann --- arch/arm64/kernel/traps.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 8af4e0e85736..d21cb25f9e1f 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -700,7 +700,6 @@ void do_sysinstr(unsigned int esr, struct pt_regs *regs) NOKPROBE_SYMBOL(do_sysinstr); static const char *esr_class_str[] = { - [0 ... ESR_ELx_EC_MAX] = "UNRECOGNIZED EC", [ESR_ELx_EC_UNKNOWN] = "Unknown/Uncategorized", [ESR_ELx_EC_WFx] = "WFI/WFE", [ESR_ELx_EC_CP15_32] = "CP15 MCR/MRC", @@ -746,7 +745,7 @@ static const char *esr_class_str[] = { const char *esr_get_class_string(u32 esr) { - return esr_class_str[ESR_ELx_EC(esr)]; + return esr_class_str[ESR_ELx_EC(esr)] ?: "UNRECOGNIZED EC"; } /* -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel