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Message-ID: <202311180630.FuB77L6v-lkp@intel.com>
Date: Sat, 18 Nov 2023 07:03:02 +0800
From: kernel test robot <lkp@...el.com>
To: Ronald Monthero <debug.penguin32@...il.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
richard@....at, vigneshr@...com, heiko@...ech.de,
martin.blumenstingl@...glemail.com, paul@...pouillou.net,
robh@...nel.org, u.kleine-koenig@...gutronix.de,
debug.penguin32@...il.com, AVKrasnov@...rdevices.ru,
r.czerwinski@...gutronix.de, andriy.shevchenko@...ux.intel.com,
jaimeliao.tw@...il.com, linux-mtd@...ts.infradead.org,
linux-kernel@...r.kernel.org,
Miquel Raynal <miquel.raynal@...tlin.com>,
Philippe Mathieu-Daudé <philmd@...aro.org>
Subject: Re: [PATCH] mtd:nand: Increment IFC_TIMEOUT_MSECS for nand
controller response
Hi Ronald,
kernel test robot noticed the following build warnings:
[auto build test WARNING on mtd/nand/next]
[also build test WARNING on linus/master v6.7-rc1 next-20231117]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ronald-Monthero/mtd-nand-Increment-IFC_TIMEOUT_MSECS-for-nand-controller-response/20231113-212730
base: https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next
patch link: https://lore.kernel.org/r/20231113131634.614467-1-debug.penguin32%40gmail.com
patch subject: [PATCH] mtd:nand: Increment IFC_TIMEOUT_MSECS for nand controller response
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20231118/202311180630.FuB77L6v-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/20231118/202311180630.FuB77L6v-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/202311180630.FuB77L6v-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/mtd/nand/raw/nand_base.c:40:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:337:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/mtd/nand/raw/nand_base.c:40:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:337:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/mtd/nand/raw/nand_base.c:40:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:337:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
>> drivers/mtd/nand/raw/nand_base.c:368:4: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
368 | pr_info("nand_chip->options indicates NAND_BROKEN_XD %d\n",
| ~~
| %lu
369 | (chip->options & NAND_BROKEN_XD));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/printk.h:528:34: note: expanded from macro 'pr_info'
528 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:455:60: note: expanded from macro 'printk'
455 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap'
427 | _p_func(_fmt, ##__VA_ARGS__); \
| ~~~~ ^~~~~~~~~~~
7 warnings generated.
vim +368 drivers/mtd/nand/raw/nand_base.c
352
353 /**
354 * nand_check_wp - [GENERIC] check if the chip is write protected
355 * @chip: NAND chip object
356 *
357 * Check, if the device is write protected. The function expects, that the
358 * device is already selected.
359 */
360 static int nand_check_wp(struct nand_chip *chip)
361 {
362 u8 status;
363 int ret;
364
365 /* Broken xD cards report WP despite being writable */
366 if (chip->options & NAND_BROKEN_XD) {
367 pr_info("nand_chip->options indicates NAND_BROKEN_XD %d\n",
> 368 (chip->options & NAND_BROKEN_XD));
369 return 0;
370 }
371
372 /* Check the WP bit */
373 ret = nand_status_op(chip, &status);
374 if (ret)
375 return ret;
376
377 return status & NAND_STATUS_WP ? 0 : 1;
378 }
379
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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