From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx49ogoBJa4wHDyq8ddf3dyaWRkN6QdeqZtqF+7lM+FO0UgZ28f7BcRvrrB0qK33LnYmbqGqe ARC-Seal: i=1; a=rsa-sha256; t=1523473378; cv=none; d=google.com; s=arc-20160816; b=v2NHezMRLGoN8NwpXlc/QP0rxXS3OHfBVTyw0wBc+61/rjkGSZeIKMWoeDMIEYm7X3 t8JbGGgKARD920lhy2ta6498TgFjh7Vbrb4BefT27ZRudTSAVMjy7d1Xchrfsed0ksSt BY3E4kJ+H+4RR2RrQ2n5NdO7QWVZHgRjgLUlXwUrT0VymXqgKx9oc7iTzzHHggBKfZRV 3gTi/qHfH8K2Ez1ZW+C0cPvdvrGo0ZqckhY7vjn/O04gvIizf+79H2Pbu3sII1i190Ug hdoZ7PPlh1ubDDC1IAIWL4Ol8a0qI9g8wQm8gWoDdTucSXvP7PHXCtb2LwWVfcNMO8jU 2umQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=9D/1MMxL+TwsH3zZbmlweLkzg3R88r98dY30cPvmVLM=; b=V8dtc1BDmh/gfiX5JpuTnzfXDQAZcJ4WHOetDkhgGZ/0ua2Wqhl9JtLsMmMHZrfpiV n0kwtcPZ9KDx42bvPl0tDE5BaA0G69CYeEChyNYubqN5RaAChH0sMbG3b6O56/plaimW F4JIz6XDrALF6KDd5Xa50cpUSPj+s7ZNgVpRlduQXmBmEKn5Cdm6aVfyxucDh4o2ia+/ ScDWIpyeBGRo2hCAETg7Tn8OwUUTBsY8zICgGxkQe4S/F3C/B772oS4f6rsguK3Xjips RZDjRDBYxCcRzTzc0F4NnqNbmvRrVPGmLt/6D7x+znbRAfUYbm1SsiILs48saK9aDGTP A62w== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ian Abbott , Arnd Bergmann , Stefano Stabellini , Sasha Levin Subject: [PATCH 4.9 227/310] xen: avoid type warning in xchg_xen_ulong Date: Wed, 11 Apr 2018 20:36:06 +0200 Message-Id: <20180411183632.282910891@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180411183622.305902791@linuxfoundation.org> References: <20180411183622.305902791@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1597476268776982779?= X-GMAIL-MSGID: =?utf-8?q?1597477621569279890?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Arnd Bergmann [ Upstream commit 9cc91f212111cdcbefa02dcdb7dd443f224bf52c ] The improved type-checking version of container_of() triggers a warning for xchg_xen_ulong, pointing out that 'xen_ulong_t' is unsigned, but atomic64_t contains a signed value: drivers/xen/events/events_2l.c: In function 'evtchn_2l_handle_events': drivers/xen/events/events_2l.c:187:1020: error: call to '__compiletime_assert_187' declared with attribute error: pointer type mismatch in container_of() This adds a cast to work around the warning. Cc: Ian Abbott Fixes: 85323a991d40 ("xen: arm: mandate EABI and use generic atomic operations.") Fixes: daa2ac80834d ("kernel.h: handle pointers to arrays better in container_of()") Signed-off-by: Arnd Bergmann Signed-off-by: Stefano Stabellini Reviewed-by: Stefano Stabellini Acked-by: Ian Abbott Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- arch/arm/include/asm/xen/events.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/arm/include/asm/xen/events.h +++ b/arch/arm/include/asm/xen/events.h @@ -16,7 +16,7 @@ static inline int xen_irqs_disabled(stru return raw_irqs_disabled_flags(regs->ARM_cpsr); } -#define xchg_xen_ulong(ptr, val) atomic64_xchg(container_of((ptr), \ +#define xchg_xen_ulong(ptr, val) atomic64_xchg(container_of((long long*)(ptr),\ atomic64_t, \ counter), (val))