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RE: [PATCH v3 00/23] xl / libxl: named PCI pass-through devices



> -----Original Message-----
> From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Sent: 23 November 2020 22:18
> To: Paul Durrant <paul@xxxxxxx>; xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Paul Durrant <pdurrant@xxxxxxxxxx>; Anthony PERARD 
> <anthony.perard@xxxxxxxxxx>; Christian Lindig
> <christian.lindig@xxxxxxxxxx>; David Scott <dave@xxxxxxxxxx>; George Dunlap
> <george.dunlap@xxxxxxxxxx>; Ian Jackson <iwj@xxxxxxxxxxxxxx>; Nick Rosbrook 
> <rosbrookn@xxxxxxxxxxxx>;
> Wei Liu <wl@xxxxxxx>
> Subject: Re: [PATCH v3 00/23] xl / libxl: named PCI pass-through devices
> 
> On 23/11/2020 17:44, Paul Durrant wrote:
> > From: Paul Durrant <pdurrant@xxxxxxxxxx>
> >
> > Paul Durrant (23):
> >   xl / libxl: s/pcidev/pci and remove DEFINE_DEVICE_TYPE_STRUCT_X
> >   libxl: make libxl__device_list() work correctly for
> >     LIBXL__DEVICE_KIND_PCI...
> >   libxl: Make sure devices added by pci-attach are reflected in the
> >     config
> >   libxl: add/recover 'rdm_policy' to/from PCI backend in xenstore
> >   libxl: s/detatched/detached in libxl_pci.c
> >   libxl: remove extraneous arguments to do_pci_remove() in libxl_pci.c
> >   libxl: stop using aodev->device_config in libxl__device_pci_add()...
> >   libxl: generalise 'driver_path' xenstore access functions in
> >     libxl_pci.c
> >   libxl: remove unnecessary check from libxl__device_pci_add()
> >   libxl: remove get_all_assigned_devices() from libxl_pci.c
> >   libxl: make sure callers of libxl_device_pci_list() free the list
> >     after use
> >   libxl: add libxl_device_pci_assignable_list_free()...
> >   libxl: use COMPARE_PCI() macro is_pci_in_array()...
> >   docs/man: extract documentation of PCI_SPEC_STRING from the xl.cfg
> >     manpage...
> >   docs/man: improve documentation of PCI_SPEC_STRING...
> >   docs/man: fix xl(1) documentation for 'pci' operations
> >   libxl: introduce 'libxl_pci_bdf' in the idl...
> >   libxlu: introduce xlu_pci_parse_spec_string()
> >   libxl: modify
> >     libxl_device_pci_assignable_add/remove/list/list_free()...
> >   docs/man: modify xl(1) in preparation for naming of assignable devices
> >   xl / libxl: support naming of assignable devices
> >   docs/man: modify xl-pci-configuration(5) to add 'name' field to
> >     PCI_SPEC_STRING
> >   xl / libxl: support 'xl pci-attach/detach' by name
> 
> We're trying to get the CI loop up and running.  Its not emailing
> xen-devel yet, but has found a real error somewhere in this series.
> 
> https://gitlab.com/xen-project/patchew/xen/-/pipelines/220153571
> 

Found it, thanks...

libxl_pci.c: In function 'libxl_device_pci_assignable_name2bdf':
libxl_pci.c:970:5: error: 'pcibdf' may be used uninitialized in this function 
[-Werror=maybe-uninitialized]
     return pcibdf;
     ^

Odd that my local build (debian 9.13) didn't pick it up. Will send a v4 shortly.

  Paul

> ~Andrew




 


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