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authorVitaly Kuznetsov <vkuznets@redhat.com>2014-10-24 12:20:27 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-11-07 10:21:44 -0800
commit31d4ea1a093fcf668d5f95af44b8d41488bdb7ec (patch)
treef27847b1ce9dc72f2cf418837a496e72e6e44727 /drivers/hv
parent170f4bea2008054e5098f99359e29823a7b4b1b9 (diff)
Drivers: hv: util: make struct hv_do_fcopy match Hyper-V host messages
An attempt to fix fcopy on i586 (bc5a5b0 Drivers: hv: util: Properly pack the data for file copy functionality) led to a regression on x86_64 (and actually didn't fix i586 breakage). Fcopy messages from Hyper-V host come in the following format: struct do_fcopy_hdr | 36 bytes 0000 | 4 bytes offset | 8 bytes size | 4 bytes data | 6144 bytes On x86_64 struct hv_do_fcopy matched this format without ' __attribute__((packed))' and on i586 adding ' __attribute__((packed))' to it doesn't change anything. Keep the structure packed and add padding to match re reality. Tested both i586 and x86_64 on Hyper-V Server 2012 R2. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
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