Re: [PATCH V2] Bluetooth: bt3c_cs: Fix obsolete function
From: kbuild test robot
Date: Sun Aug 26 2018 - 07:16:57 EST
Hi Ding,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on bluetooth/master]
[also build test WARNING on v4.18 next-20180824]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Ding-Xiang/Bluetooth-bt3c_cs-Fix-obsolete-function/20180824-184743
base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git master
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> drivers/bluetooth/bt3c_cs.c:510:54: sparse: incorrect type in argument 3 (different type sizes) @@ expected unsigned long *res @@ got nsigned long *res @@
drivers/bluetooth/bt3c_cs.c:510:54: expected unsigned long *res
drivers/bluetooth/bt3c_cs.c:510:54: got unsigned int *<noident>
drivers/bluetooth/bt3c_cs.c: In function 'bt3c_load_firmware':
drivers/bluetooth/bt3c_cs.c:510:25: error: passing argument 3 of 'kstrtoul' from incompatible pointer type [-Werror=incompatible-pointer-types]
if (kstrtoul(b, 16, &tmp))
^
In file included from include/linux/list.h:9:0,
from include/linux/module.h:9,
from drivers/bluetooth/bt3c_cs.c:24:
include/linux/kernel.h:333:32: note: expected 'long unsigned int *' but argument is of type 'unsigned int *'
static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res)
^~~~~~~~
cc1: some warnings being treated as errors
vim +510 drivers/bluetooth/bt3c_cs.c
443
444
445 static int bt3c_load_firmware(struct bt3c_info *info,
446 const unsigned char *firmware,
447 int count)
448 {
449 char *ptr = (char *) firmware;
450 char b[9];
451 unsigned int iobase, tmp;
452 unsigned long size, addr, fcs, tn;
453 int i, err = 0;
454
455 iobase = info->p_dev->resource[0]->start;
456
457 /* Reset */
458 bt3c_io_write(iobase, 0x8040, 0x0404);
459 bt3c_io_write(iobase, 0x8040, 0x0400);
460
461 udelay(1);
462
463 bt3c_io_write(iobase, 0x8040, 0x0404);
464
465 udelay(17);
466
467 /* Load */
468 while (count) {
469 if (ptr[0] != 'S') {
470 BT_ERR("Bad address in firmware");
471 err = -EFAULT;
472 goto error;
473 }
474
475 memset(b, 0, sizeof(b));
476 memcpy(b, ptr + 2, 2);
477 if (kstrtoul(b, 16, &size) < 0)
478 return -EINVAL;
479
480 memset(b, 0, sizeof(b));
481 memcpy(b, ptr + 4, 8);
482 if (kstrtoul(b, 16, &addr) < 0)
483 return -EINVAL;
484
485 memset(b, 0, sizeof(b));
486 memcpy(b, ptr + (size * 2) + 2, 2);
487 if (kstrtoul(b, 16, &fcs) < 0)
488 return -EINVAL;
489
490 memset(b, 0, sizeof(b));
491 for (tmp = 0, i = 0; i < size; i++) {
492 memcpy(b, ptr + (i * 2) + 2, 2);
493 if (kstrtoul(b, 16, &tn))
494 return -EINVAL;
495 tmp += tn;
496 }
497
498 if (((tmp + fcs) & 0xff) != 0xff) {
499 BT_ERR("Checksum error in firmware");
500 err = -EILSEQ;
501 goto error;
502 }
503
504 if (ptr[1] == '3') {
505 bt3c_address(iobase, addr);
506
507 memset(b, 0, sizeof(b));
508 for (i = 0; i < (size - 4) / 2; i++) {
509 memcpy(b, ptr + (i * 4) + 12, 4);
> 510 if (kstrtoul(b, 16, &tmp))
511 return -EINVAL;
512 bt3c_put(iobase, tmp);
513 }
514 }
515
516 ptr += (size * 2) + 6;
517 count -= (size * 2) + 6;
518 }
519
520 udelay(17);
521
522 /* Boot */
523 bt3c_address(iobase, 0x3000);
524 outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL);
525
526 error:
527 udelay(17);
528
529 /* Clear */
530 bt3c_io_write(iobase, 0x7006, 0x0000);
531 bt3c_io_write(iobase, 0x7005, 0x0000);
532 bt3c_io_write(iobase, 0x7001, 0x0000);
533
534 return err;
535 }
536
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