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From: kernel test robot <lkp@intel.com>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
	Michael Ellerman <mpe@ellerman.id.au>
Subject: fs/ntfs/mft.c:627:1: warning: the frame size of 2136 bytes is larger than 1024 bytes
Date: Wed, 28 Jul 2021 20:59:36 +0800	[thread overview]
Message-ID: <202107282019.UMUnwQMn-lkp@intel.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 17992 bytes --]

Hi Christophe,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ff1176468d368232b684f75e82563369208bc371
commit: 03fd42d458fb9cb69e712600bd69ff77ff3a45a8 powerpc/fixmap: Fix FIX_EARLY_DEBUG_BASE when page size is 256k
date:   1 year, 1 month ago
config: powerpc64-randconfig-r026-20210728 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 10.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03fd42d458fb9cb69e712600bd69ff77ff3a45a8
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 03fd42d458fb9cb69e712600bd69ff77ff3a45a8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=powerpc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   fs/ntfs/mft.c: In function 'ntfs_sync_mft_mirror':
>> fs/ntfs/mft.c:627:1: warning: the frame size of 2136 bytes is larger than 1024 bytes [-Wframe-larger-than=]
     627 | }
         | ^
   fs/ntfs/mft.c: In function 'write_mft_record_nolock':
   fs/ntfs/mft.c:839:1: warning: the frame size of 2136 bytes is larger than 1024 bytes [-Wframe-larger-than=]
     839 | }
         | ^


vim +627 fs/ntfs/mft.c

^1da177e4c3f41 Linus Torvalds     2005-04-16  435  
^1da177e4c3f41 Linus Torvalds     2005-04-16  436  /**
^1da177e4c3f41 Linus Torvalds     2005-04-16  437   * ntfs_sync_mft_mirror - synchronize an mft record to the mft mirror
^1da177e4c3f41 Linus Torvalds     2005-04-16  438   * @vol:	ntfs volume on which the mft record to synchronize resides
^1da177e4c3f41 Linus Torvalds     2005-04-16  439   * @mft_no:	mft record number of mft record to synchronize
^1da177e4c3f41 Linus Torvalds     2005-04-16  440   * @m:		mapped, mst protected (extent) mft record to synchronize
^1da177e4c3f41 Linus Torvalds     2005-04-16  441   * @sync:	if true, wait for i/o completion
^1da177e4c3f41 Linus Torvalds     2005-04-16  442   *
^1da177e4c3f41 Linus Torvalds     2005-04-16  443   * Write the mapped, mst protected (extent) mft record @m with mft record
^1da177e4c3f41 Linus Torvalds     2005-04-16  444   * number @mft_no to the mft mirror ($MFTMirr) of the ntfs volume @vol.
^1da177e4c3f41 Linus Torvalds     2005-04-16  445   *
^1da177e4c3f41 Linus Torvalds     2005-04-16  446   * On success return 0.  On error return -errno and set the volume errors flag
^1da177e4c3f41 Linus Torvalds     2005-04-16  447   * in the ntfs volume @vol.
^1da177e4c3f41 Linus Torvalds     2005-04-16  448   *
^1da177e4c3f41 Linus Torvalds     2005-04-16  449   * NOTE:  We always perform synchronous i/o and ignore the @sync parameter.
^1da177e4c3f41 Linus Torvalds     2005-04-16  450   *
^1da177e4c3f41 Linus Torvalds     2005-04-16  451   * TODO:  If @sync is false, want to do truly asynchronous i/o, i.e. just
^1da177e4c3f41 Linus Torvalds     2005-04-16  452   * schedule i/o via ->writepage or do it via kntfsd or whatever.
^1da177e4c3f41 Linus Torvalds     2005-04-16  453   */
^1da177e4c3f41 Linus Torvalds     2005-04-16  454  int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no,
^1da177e4c3f41 Linus Torvalds     2005-04-16  455  		MFT_RECORD *m, int sync)
^1da177e4c3f41 Linus Torvalds     2005-04-16  456  {
^1da177e4c3f41 Linus Torvalds     2005-04-16  457  	struct page *page;
^1da177e4c3f41 Linus Torvalds     2005-04-16  458  	unsigned int blocksize = vol->sb->s_blocksize;
^1da177e4c3f41 Linus Torvalds     2005-04-16  459  	int max_bhs = vol->mft_record_size / blocksize;
ab62ef82ea49b8 Kees Cook          2018-08-17  460  	struct buffer_head *bhs[MAX_BHS];
^1da177e4c3f41 Linus Torvalds     2005-04-16  461  	struct buffer_head *bh, *head;
^1da177e4c3f41 Linus Torvalds     2005-04-16  462  	u8 *kmirr;
^1da177e4c3f41 Linus Torvalds     2005-04-16  463  	runlist_element *rl;
^1da177e4c3f41 Linus Torvalds     2005-04-16  464  	unsigned int block_start, block_end, m_start, m_end, page_ofs;
^1da177e4c3f41 Linus Torvalds     2005-04-16  465  	int i_bhs, nr_bhs, err = 0;
78af34f03d33d2 Anton Altaparmakov 2006-02-24  466  	unsigned char blocksize_bits = vol->sb->s_blocksize_bits;
^1da177e4c3f41 Linus Torvalds     2005-04-16  467  
^1da177e4c3f41 Linus Torvalds     2005-04-16  468  	ntfs_debug("Entering for inode 0x%lx.", mft_no);
^1da177e4c3f41 Linus Torvalds     2005-04-16  469  	BUG_ON(!max_bhs);
ab62ef82ea49b8 Kees Cook          2018-08-17  470  	if (WARN_ON(max_bhs > MAX_BHS))
ab62ef82ea49b8 Kees Cook          2018-08-17  471  		return -EINVAL;
^1da177e4c3f41 Linus Torvalds     2005-04-16  472  	if (unlikely(!vol->mftmirr_ino)) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  473  		/* This could happen during umount... */
^1da177e4c3f41 Linus Torvalds     2005-04-16  474  		err = ntfs_sync_mft_mirror_umount(vol, mft_no, m);
^1da177e4c3f41 Linus Torvalds     2005-04-16  475  		if (likely(!err))
^1da177e4c3f41 Linus Torvalds     2005-04-16  476  			return err;
^1da177e4c3f41 Linus Torvalds     2005-04-16  477  		goto err_out;
^1da177e4c3f41 Linus Torvalds     2005-04-16  478  	}
^1da177e4c3f41 Linus Torvalds     2005-04-16  479  	/* Get the page containing the mirror copy of the mft record @m. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  480  	page = ntfs_map_page(vol->mftmirr_ino->i_mapping, mft_no >>
09cbfeaf1a5a67 Kirill A. Shutemov 2016-04-01  481  			(PAGE_SHIFT - vol->mft_record_size_bits));
^1da177e4c3f41 Linus Torvalds     2005-04-16  482  	if (IS_ERR(page)) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  483  		ntfs_error(vol->sb, "Failed to map mft mirror page.");
^1da177e4c3f41 Linus Torvalds     2005-04-16  484  		err = PTR_ERR(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  485  		goto err_out;
^1da177e4c3f41 Linus Torvalds     2005-04-16  486  	}
^1da177e4c3f41 Linus Torvalds     2005-04-16  487  	lock_page(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  488  	BUG_ON(!PageUptodate(page));
^1da177e4c3f41 Linus Torvalds     2005-04-16  489  	ClearPageUptodate(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  490  	/* Offset of the mft mirror record inside the page. */
09cbfeaf1a5a67 Kirill A. Shutemov 2016-04-01  491  	page_ofs = (mft_no << vol->mft_record_size_bits) & ~PAGE_MASK;
^1da177e4c3f41 Linus Torvalds     2005-04-16  492  	/* The address in the page of the mirror copy of the mft record @m. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  493  	kmirr = page_address(page) + page_ofs;
^1da177e4c3f41 Linus Torvalds     2005-04-16  494  	/* Copy the mst protected mft record to the mirror. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  495  	memcpy(kmirr, m, vol->mft_record_size);
^1da177e4c3f41 Linus Torvalds     2005-04-16  496  	/* Create uptodate buffers if not present. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  497  	if (unlikely(!page_has_buffers(page))) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  498  		struct buffer_head *tail;
^1da177e4c3f41 Linus Torvalds     2005-04-16  499  
640ab98fb3629c Jens Axboe         2017-09-27  500  		bh = head = alloc_page_buffers(page, blocksize, true);
^1da177e4c3f41 Linus Torvalds     2005-04-16  501  		do {
^1da177e4c3f41 Linus Torvalds     2005-04-16  502  			set_buffer_uptodate(bh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  503  			tail = bh;
^1da177e4c3f41 Linus Torvalds     2005-04-16  504  			bh = bh->b_this_page;
^1da177e4c3f41 Linus Torvalds     2005-04-16  505  		} while (bh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  506  		tail->b_this_page = head;
14ed109e3f3daa Guoqing Jiang      2020-06-01  507  		attach_page_private(page, head);
^1da177e4c3f41 Linus Torvalds     2005-04-16  508  	}
^1da177e4c3f41 Linus Torvalds     2005-04-16  509  	bh = head = page_buffers(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  510  	BUG_ON(!bh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  511  	rl = NULL;
^1da177e4c3f41 Linus Torvalds     2005-04-16  512  	nr_bhs = 0;
^1da177e4c3f41 Linus Torvalds     2005-04-16  513  	block_start = 0;
^1da177e4c3f41 Linus Torvalds     2005-04-16  514  	m_start = kmirr - (u8*)page_address(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  515  	m_end = m_start + vol->mft_record_size;
^1da177e4c3f41 Linus Torvalds     2005-04-16  516  	do {
^1da177e4c3f41 Linus Torvalds     2005-04-16  517  		block_end = block_start + blocksize;
^1da177e4c3f41 Linus Torvalds     2005-04-16  518  		/* If the buffer is outside the mft record, skip it. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  519  		if (block_end <= m_start)
^1da177e4c3f41 Linus Torvalds     2005-04-16  520  			continue;
^1da177e4c3f41 Linus Torvalds     2005-04-16  521  		if (unlikely(block_start >= m_end))
^1da177e4c3f41 Linus Torvalds     2005-04-16  522  			break;
^1da177e4c3f41 Linus Torvalds     2005-04-16  523  		/* Need to map the buffer if it is not mapped already. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  524  		if (unlikely(!buffer_mapped(bh))) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  525  			VCN vcn;
^1da177e4c3f41 Linus Torvalds     2005-04-16  526  			LCN lcn;
^1da177e4c3f41 Linus Torvalds     2005-04-16  527  			unsigned int vcn_ofs;
^1da177e4c3f41 Linus Torvalds     2005-04-16  528  
e74589ac250e46 Anton Altaparmakov 2005-08-16  529  			bh->b_bdev = vol->sb->s_bdev;
^1da177e4c3f41 Linus Torvalds     2005-04-16  530  			/* Obtain the vcn and offset of the current block. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  531  			vcn = ((VCN)mft_no << vol->mft_record_size_bits) +
^1da177e4c3f41 Linus Torvalds     2005-04-16  532  					(block_start - m_start);
^1da177e4c3f41 Linus Torvalds     2005-04-16  533  			vcn_ofs = vcn & vol->cluster_size_mask;
^1da177e4c3f41 Linus Torvalds     2005-04-16  534  			vcn >>= vol->cluster_size_bits;
^1da177e4c3f41 Linus Torvalds     2005-04-16  535  			if (!rl) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  536  				down_read(&NTFS_I(vol->mftmirr_ino)->
^1da177e4c3f41 Linus Torvalds     2005-04-16  537  						runlist.lock);
^1da177e4c3f41 Linus Torvalds     2005-04-16  538  				rl = NTFS_I(vol->mftmirr_ino)->runlist.rl;
^1da177e4c3f41 Linus Torvalds     2005-04-16  539  				/*
^1da177e4c3f41 Linus Torvalds     2005-04-16  540  				 * $MFTMirr always has the whole of its runlist
^1da177e4c3f41 Linus Torvalds     2005-04-16  541  				 * in memory.
^1da177e4c3f41 Linus Torvalds     2005-04-16  542  				 */
^1da177e4c3f41 Linus Torvalds     2005-04-16  543  				BUG_ON(!rl);
^1da177e4c3f41 Linus Torvalds     2005-04-16  544  			}
^1da177e4c3f41 Linus Torvalds     2005-04-16  545  			/* Seek to element containing target vcn. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  546  			while (rl->length && rl[1].vcn <= vcn)
^1da177e4c3f41 Linus Torvalds     2005-04-16  547  				rl++;
^1da177e4c3f41 Linus Torvalds     2005-04-16  548  			lcn = ntfs_rl_vcn_to_lcn(rl, vcn);
^1da177e4c3f41 Linus Torvalds     2005-04-16  549  			/* For $MFTMirr, only lcn >= 0 is a successful remap. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  550  			if (likely(lcn >= 0)) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  551  				/* Setup buffer head to correct block. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  552  				bh->b_blocknr = ((lcn <<
^1da177e4c3f41 Linus Torvalds     2005-04-16  553  						vol->cluster_size_bits) +
^1da177e4c3f41 Linus Torvalds     2005-04-16  554  						vcn_ofs) >> blocksize_bits;
^1da177e4c3f41 Linus Torvalds     2005-04-16  555  				set_buffer_mapped(bh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  556  			} else {
^1da177e4c3f41 Linus Torvalds     2005-04-16  557  				bh->b_blocknr = -1;
^1da177e4c3f41 Linus Torvalds     2005-04-16  558  				ntfs_error(vol->sb, "Cannot write mft mirror "
^1da177e4c3f41 Linus Torvalds     2005-04-16  559  						"record 0x%lx because its "
^1da177e4c3f41 Linus Torvalds     2005-04-16  560  						"location on disk could not "
^1da177e4c3f41 Linus Torvalds     2005-04-16  561  						"be determined (error code "
^1da177e4c3f41 Linus Torvalds     2005-04-16  562  						"%lli).", mft_no,
^1da177e4c3f41 Linus Torvalds     2005-04-16  563  						(long long)lcn);
^1da177e4c3f41 Linus Torvalds     2005-04-16  564  				err = -EIO;
^1da177e4c3f41 Linus Torvalds     2005-04-16  565  			}
^1da177e4c3f41 Linus Torvalds     2005-04-16  566  		}
^1da177e4c3f41 Linus Torvalds     2005-04-16  567  		BUG_ON(!buffer_uptodate(bh));
^1da177e4c3f41 Linus Torvalds     2005-04-16  568  		BUG_ON(!nr_bhs && (m_start != block_start));
^1da177e4c3f41 Linus Torvalds     2005-04-16  569  		BUG_ON(nr_bhs >= max_bhs);
^1da177e4c3f41 Linus Torvalds     2005-04-16  570  		bhs[nr_bhs++] = bh;
^1da177e4c3f41 Linus Torvalds     2005-04-16  571  		BUG_ON((nr_bhs >= max_bhs) && (m_end != block_end));
^1da177e4c3f41 Linus Torvalds     2005-04-16  572  	} while (block_start = block_end, (bh = bh->b_this_page) != head);
^1da177e4c3f41 Linus Torvalds     2005-04-16  573  	if (unlikely(rl))
^1da177e4c3f41 Linus Torvalds     2005-04-16  574  		up_read(&NTFS_I(vol->mftmirr_ino)->runlist.lock);
^1da177e4c3f41 Linus Torvalds     2005-04-16  575  	if (likely(!err)) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  576  		/* Lock buffers and start synchronous write i/o on them. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  577  		for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  578  			struct buffer_head *tbh = bhs[i_bhs];
^1da177e4c3f41 Linus Torvalds     2005-04-16  579  
ca5de404ff036a Nick Piggin        2008-08-02  580  			if (!trylock_buffer(tbh))
^1da177e4c3f41 Linus Torvalds     2005-04-16  581  				BUG();
^1da177e4c3f41 Linus Torvalds     2005-04-16  582  			BUG_ON(!buffer_uptodate(tbh));
^1da177e4c3f41 Linus Torvalds     2005-04-16  583  			clear_buffer_dirty(tbh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  584  			get_bh(tbh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  585  			tbh->b_end_io = end_buffer_write_sync;
2a222ca992c35a Mike Christie      2016-06-05  586  			submit_bh(REQ_OP_WRITE, 0, tbh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  587  		}
^1da177e4c3f41 Linus Torvalds     2005-04-16  588  		/* Wait on i/o completion of buffers. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  589  		for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  590  			struct buffer_head *tbh = bhs[i_bhs];
^1da177e4c3f41 Linus Torvalds     2005-04-16  591  
^1da177e4c3f41 Linus Torvalds     2005-04-16  592  			wait_on_buffer(tbh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  593  			if (unlikely(!buffer_uptodate(tbh))) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  594  				err = -EIO;
^1da177e4c3f41 Linus Torvalds     2005-04-16  595  				/*
^1da177e4c3f41 Linus Torvalds     2005-04-16  596  				 * Set the buffer uptodate so the page and
^1da177e4c3f41 Linus Torvalds     2005-04-16  597  				 * buffer states do not become out of sync.
^1da177e4c3f41 Linus Torvalds     2005-04-16  598  				 */
^1da177e4c3f41 Linus Torvalds     2005-04-16  599  				set_buffer_uptodate(tbh);
^1da177e4c3f41 Linus Torvalds     2005-04-16  600  			}
^1da177e4c3f41 Linus Torvalds     2005-04-16  601  		}
^1da177e4c3f41 Linus Torvalds     2005-04-16  602  	} else /* if (unlikely(err)) */ {
^1da177e4c3f41 Linus Torvalds     2005-04-16  603  		/* Clean the buffers. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  604  		for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++)
^1da177e4c3f41 Linus Torvalds     2005-04-16  605  			clear_buffer_dirty(bhs[i_bhs]);
^1da177e4c3f41 Linus Torvalds     2005-04-16  606  	}
^1da177e4c3f41 Linus Torvalds     2005-04-16  607  	/* Current state: all buffers are clean, unlocked, and uptodate. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  608  	/* Remove the mst protection fixups again. */
^1da177e4c3f41 Linus Torvalds     2005-04-16  609  	post_write_mst_fixup((NTFS_RECORD*)kmirr);
^1da177e4c3f41 Linus Torvalds     2005-04-16  610  	flush_dcache_page(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  611  	SetPageUptodate(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  612  	unlock_page(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  613  	ntfs_unmap_page(page);
^1da177e4c3f41 Linus Torvalds     2005-04-16  614  	if (likely(!err)) {
^1da177e4c3f41 Linus Torvalds     2005-04-16  615  		ntfs_debug("Done.");
^1da177e4c3f41 Linus Torvalds     2005-04-16  616  	} else {
^1da177e4c3f41 Linus Torvalds     2005-04-16  617  		ntfs_error(vol->sb, "I/O error while writing mft mirror "
^1da177e4c3f41 Linus Torvalds     2005-04-16  618  				"record 0x%lx!", mft_no);
^1da177e4c3f41 Linus Torvalds     2005-04-16  619  err_out:
^1da177e4c3f41 Linus Torvalds     2005-04-16  620  		ntfs_error(vol->sb, "Failed to synchronize $MFTMirr (error "
^1da177e4c3f41 Linus Torvalds     2005-04-16  621  				"code %i).  Volume will be left marked dirty "
^1da177e4c3f41 Linus Torvalds     2005-04-16  622  				"on umount.  Run ntfsfix on the partition "
^1da177e4c3f41 Linus Torvalds     2005-04-16  623  				"after umounting to correct this.", -err);
^1da177e4c3f41 Linus Torvalds     2005-04-16  624  		NVolSetErrors(vol);
^1da177e4c3f41 Linus Torvalds     2005-04-16  625  	}
^1da177e4c3f41 Linus Torvalds     2005-04-16  626  	return err;
^1da177e4c3f41 Linus Torvalds     2005-04-16 @627  }
^1da177e4c3f41 Linus Torvalds     2005-04-16  628  

:::::: The code at line 627 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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