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xilinx: board: Fix xilinx_eeprom_legacy_cleanup()

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When ethernet mac address contains 0x20 or 0xff MAC address is changed and
bytes are converted to zeros. That's why fix decoding algorithm to ignore
fields where MAC address is stored and all non printable chars (including
space) are zeroed.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/2802cf1086b14c181356810006fe886f950a36f3.1674573561.git.michal.simek@amd.com
This commit is contained in:
Michal Simek 2023-01-24 16:19:27 +01:00
parent b86b135fc6
commit e6c62537db
1 changed files with 6 additions and 2 deletions
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8
board/xilinx/common/board.c
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@ -102,9 +102,13 @@ static void xilinx_eeprom_legacy_cleanup(char *eeprom, int size)
for (i = 0; i < size; i++) {
byte = eeprom[i];
/* Remove all ffs and spaces */
if (byte == 0xff || byte == ' ')
/* Remove all non printable chars but ignore MAC address */
if ((i < offsetof(struct xilinx_legacy_format, eth_mac) ||
i >= offsetof(struct xilinx_legacy_format, unused1)) &&
(byte < '!' || byte > '~')) {
eeprom[i] = 0;
continue;
}
/* Convert strings to lower case */
if (byte >= 'A' && byte <= 'Z')