#define ESR_ELx_FSC (0x3F)
static inline const struct fault_info *esr_to_fault_info(unsigned int esr)
{
return fault_info + (esr & ESR_ELx_FSC);
}
Ok, it's just the index and the fault_info table contains
> { do_sea, SIGBUS, BUS_OBJERR, "synchronous external abort" },
TL;DR: the value says 'synchronous external abort' :)