USB: host: isp1362: delete isp1362_show_regs()

No one is calling this function, so it's pointless to keep around as it
is triggering automated scanning tools to try to fix up the problems
with it using in_interrupt().

So delete the thing.
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20201028113107.2007742-1-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/isp1362.h

@@ -793,60 +793,6 @@ static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 l
 			ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg16(d, r));	\
 }
 
-static void __attribute__((__unused__)) isp1362_show_regs(struct isp1362_hcd *isp1362_hcd)
-{
-	isp1362_show_reg(isp1362_hcd, HCREVISION);
-	isp1362_show_reg(isp1362_hcd, HCCONTROL);
-	isp1362_show_reg(isp1362_hcd, HCCMDSTAT);
-	isp1362_show_reg(isp1362_hcd, HCINTSTAT);
-	isp1362_show_reg(isp1362_hcd, HCINTENB);
-	isp1362_show_reg(isp1362_hcd, HCFMINTVL);
-	isp1362_show_reg(isp1362_hcd, HCFMREM);
-	isp1362_show_reg(isp1362_hcd, HCFMNUM);
-	isp1362_show_reg(isp1362_hcd, HCLSTHRESH);
-	isp1362_show_reg(isp1362_hcd, HCRHDESCA);
-	isp1362_show_reg(isp1362_hcd, HCRHDESCB);
-	isp1362_show_reg(isp1362_hcd, HCRHSTATUS);
-	isp1362_show_reg(isp1362_hcd, HCRHPORT1);
-	isp1362_show_reg(isp1362_hcd, HCRHPORT2);
-
-	isp1362_show_reg(isp1362_hcd, HCHWCFG);
-	isp1362_show_reg(isp1362_hcd, HCDMACFG);
-	isp1362_show_reg(isp1362_hcd, HCXFERCTR);
-	isp1362_show_reg(isp1362_hcd, HCuPINT);
-
-	if (in_interrupt())
-		DBG(0, "%-12s[%02x]:     %04x\n", "HCuPINTENB",
-			 ISP1362_REG_NO(ISP1362_REG_HCuPINTENB), isp1362_hcd->irqenb);
-	else
-		isp1362_show_reg(isp1362_hcd, HCuPINTENB);
-	isp1362_show_reg(isp1362_hcd, HCCHIPID);
-	isp1362_show_reg(isp1362_hcd, HCSCRATCH);
-	isp1362_show_reg(isp1362_hcd, HCBUFSTAT);
-	isp1362_show_reg(isp1362_hcd, HCDIRADDR);
-	/* Access would advance fifo
-	 * isp1362_show_reg(isp1362_hcd, HCDIRDATA);
-	 */
-	isp1362_show_reg(isp1362_hcd, HCISTLBUFSZ);
-	isp1362_show_reg(isp1362_hcd, HCISTLRATE);
-	isp1362_show_reg(isp1362_hcd, HCINTLBUFSZ);
-	isp1362_show_reg(isp1362_hcd, HCINTLBLKSZ);
-	isp1362_show_reg(isp1362_hcd, HCINTLDONE);
-	isp1362_show_reg(isp1362_hcd, HCINTLSKIP);
-	isp1362_show_reg(isp1362_hcd, HCINTLLAST);
-	isp1362_show_reg(isp1362_hcd, HCINTLCURR);
-	isp1362_show_reg(isp1362_hcd, HCATLBUFSZ);
-	isp1362_show_reg(isp1362_hcd, HCATLBLKSZ);
-	/* only valid after ATL_DONE interrupt
-	 * isp1362_show_reg(isp1362_hcd, HCATLDONE);
-	 */
-	isp1362_show_reg(isp1362_hcd, HCATLSKIP);
-	isp1362_show_reg(isp1362_hcd, HCATLLAST);
-	isp1362_show_reg(isp1362_hcd, HCATLCURR);
-	isp1362_show_reg(isp1362_hcd, HCATLDTC);
-	isp1362_show_reg(isp1362_hcd, HCATLDTCTO);
-}
-
 static void isp1362_write_diraddr(struct isp1362_hcd *isp1362_hcd, u16 offset, u16 len)
 {
 	len = (len + 1) & ~1;