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Fix md signature check to handle both endiannesses.

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This commit is contained in:
Alasdair Kergon 2007-01-26 17:15:16 +00:00
parent 67fa4fd49e
commit fce67134f3
2 changed files with 4 additions and 1 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.21 - Version 2.02.21 -
=================================== ===================================
Fix md signature check to handle both endiannesses.
Version 2.02.20 - 25th January 2007 Version 2.02.20 - 25th January 2007
=================================== ===================================

4
lib/device/dev-md.c
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@ -53,8 +53,10 @@ int dev_is_md(struct device *dev, uint64_t *sb)
sb_offset = MD_NEW_SIZE_SECTORS(size) << SECTOR_SHIFT; sb_offset = MD_NEW_SIZE_SECTORS(size) << SECTOR_SHIFT;
/* Check if it is an md component device. */ /* Check if it is an md component device. */
/* Version 1 is little endian; version 0.90.0 is machine endian */
if (dev_read(dev, sb_offset, sizeof(uint32_t), &md_magic) && if (dev_read(dev, sb_offset, sizeof(uint32_t), &md_magic) &&
(md_magic == xlate32(MD_SB_MAGIC))) { ((md_magic == xlate32(MD_SB_MAGIC)) ||
(md_magic == MD_SB_MAGIC))) {
if (sb) if (sb)
*sb = sb_offset; *sb = sb_offset;
ret = 1; ret = 1;