S390 port

Hi,

I am currently doing the markers port, and thought it would be a good idea to
switch the s290 code from the original LTT to MARKERS too.

Can anyone explain me the subtility there ?



static void inline do_trap(long interruption_code, int signr, char *str,
                           struct pt_regs *regs, siginfo_t *info)
{
         trapid_t ltt_interruption_code;
         char * ic_ptr = (char *) &ltt_interruption_code;

        /*
         * We got all needed information from the lowcore and can
         * now safely switch on interrupts.
         */
        if (regs->psw.mask & PSW_MASK_PSTATE)
                local_irq_enable();

        memset(&ltt_interruption_code,0,sizeof(ltt_interruption_code));
        memcpy(ic_ptr+4,&interruption_code,sizeof(interruption_code));
        ltt_ev_trap_entry(ltt_interruption_code, (regs->psw.addr & PSW_ADDR_INSN));

It looks like an endianness issue mixed with different size types, but I want to
make sure I understand before I modify it.

Mathieu


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