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Message-ID: <202311051924.sPxeVYCL-lkp@intel.com>
Date: Sun, 5 Nov 2023 20:02:22 +0800
From: kernel test robot <lkp@...el.com>
To: Arnd Bergmann <arnd@...db.de>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Robin Murphy <robin.murphy@....com>,
Hannes Reinecke <hare@...e.de>
Subject: drivers/scsi/FlashPoint.c:1712:12: warning: stack frame size (2544)
exceeds limit (2048) in 'FlashPoint_HandleInterrupt'
Hi Arnd,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1c41041124bd14dd6610da256a3da4e5b74ce6b1
commit: 9f7c2232e131b1de2ee4abadfce5d8f010e223c6 scsi: BusLogic: Remove bus_to_virt()
date: 1 year, 4 months ago
config: powerpc64-allyesconfig (https://download.01.org/0day-ci/archive/20231105/202311051924.sPxeVYCL-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231105/202311051924.sPxeVYCL-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311051924.sPxeVYCL-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/scsi/BusLogic.c:2201:6: warning: variable 'adapter_count' set but not used [-Wunused-but-set-variable]
2201 | int adapter_count = 0, drvr_optindex = 0, probeindex;
| ^
In file included from drivers/scsi/BusLogic.c:51:
>> drivers/scsi/FlashPoint.c:1712:12: warning: stack frame size (2544) exceeds limit (2048) in 'FlashPoint_HandleInterrupt' [-Wframe-larger-than]
1712 | static int FlashPoint_HandleInterrupt(void *pcard)
| ^
2 warnings generated.
vim +/FlashPoint_HandleInterrupt +1712 drivers/scsi/FlashPoint.c
^1da177e4c3f41 Linus Torvalds 2005-04-16 1702
^1da177e4c3f41 Linus Torvalds 2005-04-16 1703 /*---------------------------------------------------------------------
^1da177e4c3f41 Linus Torvalds 2005-04-16 1704 *
d8b6b8bd8a99ee Alexey Dobriyan 2006-03-08 1705 * Function: FlashPoint_HandleInterrupt
^1da177e4c3f41 Linus Torvalds 2005-04-16 1706 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 1707 * Description: This is our entry point when an interrupt is generated
^1da177e4c3f41 Linus Torvalds 2005-04-16 1708 * by the card and the upper level driver passes it on to
^1da177e4c3f41 Linus Torvalds 2005-04-16 1709 * us.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1710 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 1711 *---------------------------------------------------------------------*/
391e2f25601e34 Khalid Aziz 2013-05-16 @1712 static int FlashPoint_HandleInterrupt(void *pcard)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1713 {
69eb2ea4779336 Alexey Dobriyan 2006-03-08 1714 struct sccb *currSCCB;
db038cf86fc63d Alexey Dobriyan 2006-03-08 1715 unsigned char thisCard, result, bm_status, bm_int_st;
c823feeb33161c Alexey Dobriyan 2006-03-08 1716 unsigned short hp_int;
db038cf86fc63d Alexey Dobriyan 2006-03-08 1717 unsigned char i, target;
391e2f25601e34 Khalid Aziz 2013-05-16 1718 struct sccb_card *pCurrCard = pcard;
391e2f25601e34 Khalid Aziz 2013-05-16 1719 u32 ioport;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1720
391e2f25601e34 Khalid Aziz 2013-05-16 1721 thisCard = pCurrCard->cardIndex;
391e2f25601e34 Khalid Aziz 2013-05-16 1722 ioport = pCurrCard->ioPort;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1723
^1da177e4c3f41 Linus Torvalds 2005-04-16 1724 MDISABLE_INT(ioport);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1725
^1da177e4c3f41 Linus Torvalds 2005-04-16 1726 if ((bm_int_st = RD_HARPOON(ioport + hp_int_status)) & EXT_STATUS_ON)
391e2f25601e34 Khalid Aziz 2013-05-16 1727 bm_status = RD_HARPOON(ioport + hp_ext_status) &
391e2f25601e34 Khalid Aziz 2013-05-16 1728 (unsigned char)BAD_EXT_STATUS;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1729 else
^1da177e4c3f41 Linus Torvalds 2005-04-16 1730 bm_status = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1731
^1da177e4c3f41 Linus Torvalds 2005-04-16 1732 WR_HARPOON(ioport + hp_int_mask, (INT_CMD_COMPL | SCSI_INTERRUPT));
^1da177e4c3f41 Linus Torvalds 2005-04-16 1733
391e2f25601e34 Khalid Aziz 2013-05-16 1734 while ((hp_int = RDW_HARPOON((ioport + hp_intstat)) &
391e2f25601e34 Khalid Aziz 2013-05-16 1735 FPT_default_intena) | bm_status) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1736
391e2f25601e34 Khalid Aziz 2013-05-16 1737 currSCCB = pCurrCard->currentSCCB;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1738
^1da177e4c3f41 Linus Torvalds 2005-04-16 1739 if (hp_int & (FIFO | TIMEOUT | RESET | SCAM_SEL) || bm_status) {
5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1740 result =
391e2f25601e34 Khalid Aziz 2013-05-16 1741 FPT_SccbMgr_bad_isr(ioport, thisCard, pCurrCard,
5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1742 hp_int);
5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1743 WRW_HARPOON((ioport + hp_intstat),
5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1744 (FIFO | TIMEOUT | RESET | SCAM_SEL));
^1da177e4c3f41 Linus Torvalds 2005-04-16 1745 bm_status = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1746
^1da177e4c3f41 Linus Torvalds 2005-04-16 1747 if (result) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1748
^1da177e4c3f41 Linus Torvalds 2005-04-16 1749 MENABLE_INT(ioport);
5c1b85e209af41 Alexey Dobriyan 2006-03-08 1750 return result;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1751 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 1752 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 1753
^1da177e4c3f41 Linus Torvalds 2005-04-16 1754 else if (hp_int & ICMD_COMP) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1755
^1da177e4c3f41 Linus Torvalds 2005-04-16 1756 if (!(hp_int & BUS_FREE)) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1757 /* Wait for the BusFree before starting a new command. We
^1da177e4c3f41 Linus Torvalds 2005-04-16 1758 must also check for being reselected since the BusFree
^1da177e4c3f41 Linus Torvalds 2005-04-16 1759 may not show up if another device reselects us in 1.5us or
^1da177e4c3f41 Linus Torvalds 2005-04-16 1760 less. SRR Wednesday, 3/8/1995.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1761 */
5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1762 while (!
5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1763 (RDW_HARPOON((ioport + hp_intstat)) &
5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1764 (BUS_FREE | RSEL))) ;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1765 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 1766
391e2f25601e34 Khalid Aziz 2013-05-16 1767 if (pCurrCard->globalFlags & F_HOST_XFER_ACT)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1768
47b5d69c4aa753 James Bottomley 2005-04-24 1769 FPT_phaseChkFifo(ioport, thisCard);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1770
:::::: The code at line 1712 was first introduced by commit
:::::: 391e2f25601e34a7d7e5dc155e487bc58dffd8c6 [SCSI] BusLogic: Port driver to 64-bit.
:::::: TO: Khalid Aziz <khalid.aziz@...cle.com>
:::::: CC: James Bottomley <JBottomley@...allels.com>
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