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Message-ID: <202105110808.470w6nZU-lkp@intel.com>
Date: Tue, 11 May 2021 08:34:21 +0800
From: kernel test robot <lkp@...el.com>
To: Greg Ungerer <gerg@...ux-m68k.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Subject: drivers/mtd/nand/raw/sh_flctl.c:510:17: sparse: sparse: incorrect
type in assignment (different base types)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 142b507f911c5a502dbb8f603216cb0ea8a79a48
commit: 005b73d0dd83c9cb9420a196bea8070cde30ecac m68knommu: __force type casts for raw IO access
date: 10 months ago
config: m68k-randconfig-s032-20210510 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=005b73d0dd83c9cb9420a196bea8070cde30ecac
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 005b73d0dd83c9cb9420a196bea8070cde30ecac
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=m68k
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
drivers/mtd/nand/raw/sh_flctl.c:456:16: sparse: sparse: cast to restricted __le32
drivers/mtd/nand/raw/sh_flctl.c:456:16: sparse: sparse: cast to restricted __le32
drivers/mtd/nand/raw/sh_flctl.c:456:16: sparse: sparse: cast to restricted __le32
drivers/mtd/nand/raw/sh_flctl.c:456:16: sparse: sparse: cast to restricted __le32
drivers/mtd/nand/raw/sh_flctl.c:456:16: sparse: sparse: cast to restricted __le32
drivers/mtd/nand/raw/sh_flctl.c:456:16: sparse: sparse: cast to restricted __le32
drivers/mtd/nand/raw/sh_flctl.c:479:26: sparse: sparse: cast to restricted __be32
drivers/mtd/nand/raw/sh_flctl.c:494:38: sparse: sparse: cast to restricted __be32
>> drivers/mtd/nand/raw/sh_flctl.c:510:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int volatile [usertype] @@ got restricted __be32 [usertype] @@
drivers/mtd/nand/raw/sh_flctl.c:510:17: sparse: expected unsigned int volatile [usertype]
drivers/mtd/nand/raw/sh_flctl.c:510:17: sparse: got restricted __be32 [usertype]
drivers/mtd/nand/raw/sh_flctl.c:523:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long @@ got restricted __be32 [usertype] @@
drivers/mtd/nand/raw/sh_flctl.c:523:24: sparse: expected unsigned long
drivers/mtd/nand/raw/sh_flctl.c:523:24: sparse: got restricted __be32 [usertype]
vim +510 drivers/mtd/nand/raw/sh_flctl.c
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 447
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 448 static void read_datareg(struct sh_flctl *flctl, int offset)
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 449 {
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 450 unsigned long data;
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 451 unsigned long *buf = (unsigned long *)&flctl->done_buff[offset];
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 452
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 453 wait_completion(flctl);
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 454
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 455 data = readl(FLDATAR(flctl));
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 @456 *buf = le32_to_cpu(data);
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 457 }
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 458
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 459 static void read_fiforeg(struct sh_flctl *flctl, int rlen, int offset)
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 460 {
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 461 int i, len_4align;
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 462 unsigned long *buf = (unsigned long *)&flctl->done_buff[offset];
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 463
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 464 len_4align = (rlen + 3) / 4;
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 465
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 466 /* initiate DMA transfer */
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 467 if (flctl->chan_fifo0_rx && rlen >= 32 &&
e2bfa4ca23d9b5 drivers/mtd/nand/raw/sh_flctl.c Nathan Chancellor 2018-09-20 468 flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_FROM_DEVICE) > 0)
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 469 goto convert; /* DMA success */
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 470
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 471 /* do polling transfer */
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 472 for (i = 0; i < len_4align; i++) {
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 473 wait_rfifo_ready(flctl);
3166df0d0424ef drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 474 buf[i] = readl(FLDTFIFO(flctl));
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 475 }
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 476
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 477 convert:
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 478 for (i = 0; i < len_4align; i++)
83738d87e3a0a4 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 479 buf[i] = be32_to_cpu(buf[i]);
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 480 }
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 481
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 482 static enum flctl_ecc_res_t read_ecfiforeg
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 483 (struct sh_flctl *flctl, uint8_t *buff, int sector)
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 484 {
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 485 int i;
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 486 enum flctl_ecc_res_t res;
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 487 unsigned long *ecc_buf = (unsigned long *)buff;
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 488
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 489 res = wait_recfifo_ready(flctl , sector);
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 490
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 491 if (res != FL_ERROR) {
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 492 for (i = 0; i < 4; i++) {
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 493 ecc_buf[i] = readl(FLECFIFO(flctl));
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 494 ecc_buf[i] = be32_to_cpu(ecc_buf[i]);
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 495 }
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 496 }
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 497
6667a6d58e25d3 drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-05-14 498 return res;
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 499 }
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 500
e8a9d8f31c592e drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 501 static void write_fiforeg(struct sh_flctl *flctl, int rlen,
e8a9d8f31c592e drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 502 unsigned int offset)
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 503 {
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 504 int i, len_4align;
e8a9d8f31c592e drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 505 unsigned long *buf = (unsigned long *)&flctl->done_buff[offset];
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 506
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 507 len_4align = (rlen + 3) / 4;
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 508 for (i = 0; i < len_4align; i++) {
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 509 wait_wfifo_ready(flctl);
e8a9d8f31c592e drivers/mtd/nand/sh_flctl.c Bastian Hecht 2012-10-19 @510 writel(cpu_to_be32(buf[i]), FLDTFIFO(flctl));
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 511 }
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 512 }
6028aa01f759a1 drivers/mtd/nand/sh_flctl.c Yoshihiro Shimoda 2008-10-14 513
:::::: The code at line 510 was first introduced by commit
:::::: e8a9d8f31c592eea89f1b0d3fd425e7a96944e88 mtd: sh_flctl: Minor cleanups
:::::: TO: Bastian Hecht <hechtb@...glemail.com>
:::::: CC: Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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