This patch fixes several issues where sector offsets can overflow due to being limited to 16-bits. The cases where an overflow can happen when accessing large FAT32 partitions are: - length of FAT in sectors - start sector of root directory - the sector of the first cluster These issues were observed when reading files from a 64GB FAT32 filesystem. Signed-off-by: Aaron Williams <aaron.williams@caviumnetworks.com> Tested-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>master
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