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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: xen-devel@lists.xenproject.org,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	Ian Campbell <ian.campbell@citrix.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: [PATCH v4 01/31] libxl: fix libxl__build_hvm error handling
Date: Fri, 7 Aug 2015 12:55:21 +0200	[thread overview]
Message-ID: <55C48E99.3050606@citrix.com> (raw)
In-Reply-To: <20150807104922.GD6005@zion.uk.xensource.com>

El 07/08/15 a les 12.49, Wei Liu ha escrit:
> On Fri, Aug 07, 2015 at 12:17:38PM +0200, Roger Pau Monne wrote:
>> With the current code in libxl__build_hvm it is possible for the function to
>> fail and still return 0.
> 
> It's hard to see where the bug is when this patch also does a bunch of
> refactoring.

It refactors the error paths only, mainly replacing:

if (libxl_call_foo(bar))
    <error>

to

rc = libxl_call_foo(bar)
if (rc != 0)
    <error>

So we can keep the error codes returned by auxiliary functions.

> It would be good if you can separate the bug fix from other name
> changing bits, so that we can apply that bug fix for 4.6 possibly queue
> it up for backporting.

There are no name changing bits AFAICT.

Roger.

  reply	other threads:[~2015-08-07 10:55 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-07 10:17 [PATCH v4 00/31] Introduce HVM without dm and new boot ABI Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 01/31] libxl: fix libxl__build_hvm error handling Roger Pau Monne
2015-08-07 10:49   ` Wei Liu
2015-08-07 10:55     ` Roger Pau Monné [this message]
2015-08-07 11:03       ` Wei Liu
2015-08-07 11:28         ` Roger Pau Monné
2015-08-07 11:43           ` Wei Liu
2015-08-13 15:04   ` Ian Jackson
2015-08-13 15:06   ` Wei Liu
2015-08-16  8:01     ` Ian Campbell
2015-08-07 10:17 ` [PATCH v4 02/31] libxc: split x86 HVM setup_guest into smaller logical functions Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 03/31] libxc: unify xc_dom_p2m_{host/guest} Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 04/31] libxc: introduce the notion of a container type Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 05/31] libxc: introduce a domain loader for HVM guest firmware Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 06/31] libxc: make arch_setup_meminit a xc_dom_arch hook Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 07/31] libxc: make arch_setup_boot{init/late} xc_dom_arch hooks Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 08/31] libxc: rework BSP initialization Roger Pau Monne
2015-08-07 11:31   ` Wei Liu
2015-08-07 12:04     ` Roger Pau Monné
2015-08-07 12:06       ` Wei Liu
2015-08-07 15:30         ` Andrew Cooper
2015-08-07 15:22   ` Andrew Cooper
2015-08-07 10:17 ` [PATCH v4 09/31] libxc: introduce a xc_dom_arch for hvm-3.0-x86_32 guests Roger Pau Monne
2015-08-07 12:00   ` Wei Liu
2015-08-07 15:58   ` Andrew Cooper
2015-08-07 10:17 ` [PATCH v4 10/31] libxl: switch HVM domain building to use xc_dom_* helpers Roger Pau Monne
2015-08-07 12:12   ` Wei Liu
2015-08-07 10:17 ` [PATCH v4 11/31] libxc: remove dead HVM building code Roger Pau Monne
2015-08-07 12:12   ` Wei Liu
2015-08-07 15:59   ` Andrew Cooper
2015-08-07 10:17 ` [PATCH v4 12/31] xen/x86: add bitmap of enabled emulated devices Roger Pau Monne
2015-08-07 16:08   ` Andrew Cooper
2015-08-07 10:17 ` [PATCH v4 13/31] xen/x86: allow disabling the emulated local apic Roger Pau Monne
2015-08-07 14:09   ` Boris Ostrovsky
2015-08-07 15:41     ` Roger Pau Monné
2015-08-07 16:11       ` Boris Ostrovsky
2015-08-07 16:18         ` Roger Pau Monné
2015-08-07 16:29   ` Andrew Cooper
2015-08-07 10:17 ` [PATCH v4 14/31] xen/x86: allow disabling the emulated HPET Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 15/31] xen/x86: allow disabling the pmtimer Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 16/31] xen/x86: allow disabling the emulated RTC Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 17/31] xen/x86: allow disabling the emulated IO APIC Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 18/31] xen/x86: allow disabling the emulated PIC Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 19/31] xen/x86: allow disabling the emulated pmu Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 20/31] xen/x86: allow disabling the emulated VGA Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 21/31] xen/x86: allow disabling the emulated IOMMU Roger Pau Monne
2015-08-07 10:17 ` [PATCH v4 22/31] xen/x86: allow disabling all emulated devices inside of Xen Roger Pau Monne
2015-08-07 16:32   ` Andrew Cooper
2015-08-07 10:18 ` [PATCH v4 23/31] elfnotes: intorduce a new PHYS_ENTRY elfnote Roger Pau Monne
2015-08-07 16:37   ` Andrew Cooper
2015-08-07 16:44   ` Wei Liu
2015-08-07 10:18 ` [PATCH v4 24/31] libxc: allow creating domains without emulated devices Roger Pau Monne
2015-08-07 12:18   ` Wei Liu
2015-08-07 16:36   ` Andrew Cooper
2015-08-17 15:55     ` Roger Pau Monné
2015-08-18 16:25       ` Andrew Cooper
2015-08-07 10:18 ` [PATCH v4 25/31] xen: allow HVM guests to use XENMEM_memory_map Roger Pau Monne
2015-08-07 12:22   ` Wei Liu
2015-08-07 15:44     ` Roger Pau Monné
2015-08-07 15:55       ` Wei Liu
2015-08-07 16:00         ` Roger Pau Monné
2015-08-07 10:18 ` [PATCH v4 26/31] xen/x86: allow HVM guests to use hypercalls to bring up vCPUs Roger Pau Monne
2015-08-07 19:03   ` Andrew Cooper
2015-08-12  8:22     ` Jan Beulich
2015-08-07 10:18 ` [PATCH v4 27/31] xenconsole: try to attach to PV console if HVM fails Roger Pau Monne
2015-08-07 12:25   ` Wei Liu
2015-08-07 10:18 ` [PATCH v4 28/31] libxc/xen: introduce HVM_PARAM_CMDLINE_PFN Roger Pau Monne
2015-08-07 12:32   ` Wei Liu
2015-08-07 17:30   ` Andrew Cooper
2015-08-18 10:01     ` Roger Pau Monné
2015-08-18 16:32       ` Andrew Cooper
2015-08-07 10:18 ` [PATCH v4 29/31] libxc/xen: introduce HVM_PARAM_MODLIST_PFN Roger Pau Monne
2015-08-07 12:36   ` Wei Liu
2015-08-07 10:18 ` [PATCH v4 30/31] libxc: switch xc_dom_elfloader to be used with HVMlite domains Roger Pau Monne
2015-08-07 17:43   ` Andrew Cooper
2015-08-07 10:18 ` [PATCH v4 31/31] libxl: allow the creation of HVM domains without a device model Roger Pau Monne
2015-08-07 12:58   ` Wei Liu
2015-08-07 15:51     ` Roger Pau Monné
2015-08-07 16:24       ` Wei Liu
2015-08-07 18:41         ` Andrew Cooper
2015-08-10  7:57           ` Paul Durrant
2015-08-07 15:18   ` Konrad Rzeszutek Wilk
2015-08-07 15:57     ` Roger Pau Monné
2015-08-07 17:52       ` Andrew Cooper

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