[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v3 51/62] arm/acpi: Prepare EFI system table for Dom0
Hi Shannon, On 17/11/15 09:40, shannon.zhao@xxxxxxxxxx wrote: > diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c > index 6a48624..75835ae 100644 > --- a/xen/common/efi/boot.c > +++ b/xen/common/efi/boot.c > @@ -1192,6 +1192,70 @@ int __init estimate_efi_size(int mem_nr_banks) > > return size; > } > + > +static uint32_t __init xz_crc32(uint8_t *buf, size_t size, uint32_t crc) > +{ > + uint32_t xz_crc32_table[256]; > + const uint32_t poly = 0xEDB88320; > + uint32_t i; > + uint32_t j; > + uint32_t r; > + > + for (i = 0; i < 256; ++i) { > + r = i; > + for (j = 0; j < 8; ++j) > + r = (r >> 1) ^ (poly & ~((r & 1) - 1)); > + > + xz_crc32_table[i] = r; > + } > + > + crc = ~crc; > + while (size != 0) { > + crc = xz_crc32_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8); > + --size; > + } > + > + return ~crc; > +} I'm nearly sure I already said it, this code already exists in the tree. Why do you need to implement a new version? Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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