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Message-ID: <201712040455.1tZmVDmK%fengguang.wu@intel.com>
Date: Mon, 4 Dec 2017 04:25:53 +0800
From: kbuild test robot <lkp@...el.com>
To: Andrew Jeffery <andrew@...id.au>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org,
Andrew Jeffery <andrew@...id.au>, gregkh@...uxfoundation.org,
devicetree@...r.kernel.org, robh+dt@...nel.org,
mark.rutland@....com, bradleyb@...ziesquirrel.com,
cbostic@...ux.vnet.ibm.com, joel@....id.au,
eajames@...ux.vnet.ibm.com, "Edward A. James" <eajames@...ibm.com>
Subject: Re: [PATCH] fsi: Add Self Boot Engine FIFO FSI client
Hi Andrew,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v4.15-rc2 next-20171201]
[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/Andrew-Jeffery/fsi-Add-Self-Boot-Engine-FIFO-FSI-client/20171204-031454
config: blackfin-allmodconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=blackfin
All error/warnings (new ones prefixed by >>):
>> drivers/fsi//clients/fsi-sbefifo.c:325:0: warning: "TEST_SET" redefined
#define TEST_SET(s) ((s) & BIT(7))
In file included from arch/blackfin/mach-bf533/include/mach/blackfin.h:15:0,
from arch/blackfin/include/asm/irqflags.h:11,
from include/linux/irqflags.h:16,
from arch/blackfin/include/asm/bitops.h:33,
from include/linux/bitops.h:38,
from drivers/fsi//clients/fsi-sbefifo.c:5:
arch/blackfin/include/asm/def_LPBlackfin.h:687:0: note: this is the location of the previous definition
#define TEST_SET(x) ((x << 5) & 0x03E0) /* Set Index 0->31 */
In file included from include/linux/printk.h:329:0,
from include/linux/kernel.h:14,
from include/linux/list.h:9,
from include/linux/kobject.h:20,
from include/linux/device.h:17,
from include/linux/fsi.h:18,
from drivers/fsi//clients/fsi-sbefifo.c:6:
drivers/fsi//clients/fsi-sbefifo.c: In function 'sbefifo_drain':
>> drivers/fsi//clients/fsi-sbefifo.c:359:21: warning: format '%d' expects argument of type 'int', but argument 7 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
>> drivers/fsi//clients/fsi-sbefifo.c:359:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^~~~~~~
drivers/fsi//clients/fsi-sbefifo.c:359:21: warning: format '%d' expects argument of type 'int', but argument 9 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
>> drivers/fsi//clients/fsi-sbefifo.c:359:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^~~~~~~
drivers/fsi//clients/fsi-sbefifo.c:378:21: warning: format '%d' expects argument of type 'int', but argument 7 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: Data phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/fsi//clients/fsi-sbefifo.c:378:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: Data phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^~~~~~~
drivers/fsi//clients/fsi-sbefifo.c:378:21: warning: format '%d' expects argument of type 'int', but argument 9 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: Data phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/fsi//clients/fsi-sbefifo.c:378:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: Data phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^~~~~~~
drivers/fsi//clients/fsi-sbefifo.c:403:21: warning: format '%d' expects argument of type 'int', but argument 7 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: EOT phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d\n, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/fsi//clients/fsi-sbefifo.c:403:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: EOT phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d\n, nr_xfer: %d, rem: %d\n",
^~~~~~~
drivers/fsi//clients/fsi-sbefifo.c:403:21: warning: format '%d' expects argument of type 'int', but argument 9 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: EOT phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d\n, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/fsi//clients/fsi-sbefifo.c:403:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: EOT phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d\n, nr_xfer: %d, rem: %d\n",
^~~~~~~
drivers/fsi//clients/fsi-sbefifo.c:417:21: warning: format '%d' expects argument of type 'int', but argument 7 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: Drain phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/fsi//clients/fsi-sbefifo.c:417:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: Drain phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^~~~~~~
drivers/fsi//clients/fsi-sbefifo.c:417:21: warning: format '%d' expects argument of type 'int', but argument 9 has type 'ssize_t {aka long int}' [-Wformat=]
dev_dbg(fifo->dev, "%s: Drain phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^
include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/fsi//clients/fsi-sbefifo.c:417:2: note: in expansion of macro 'dev_dbg'
dev_dbg(fifo->dev, "%s: Drain phase complete: valid_set: 0x%x, eot_set: 0x%x, nr_valid: %d, nr_xfer: %d, rem: %d\n",
^~~~~~~
In file included from include/linux/list.h:9:0,
from include/linux/kobject.h:20,
from include/linux/device.h:17,
from include/linux/fsi.h:18,
from drivers/fsi//clients/fsi-sbefifo.c:6:
drivers/fsi//clients/fsi-sbefifo.c: In function 'sbefifo_down_read':
include/linux/kernel.h:792:16: warning: comparison of distinct pointer types lacks a cast
(void) (&min1 == &min2); \
^
include/linux/kernel.h:801:2: note: in expansion of macro '__min'
__min(typeof(x), typeof(y), \
^~~~~
>> drivers/fsi//clients/fsi-sbefifo.c:453:34: note: in expansion of macro 'min'
} while (rem && read && read == min((rem + read), SBEFIFO_FIFO_DEPTH));
^~~
drivers/fsi//clients/fsi-sbefifo.c: In function 'sbefifo_write':
drivers/fsi//clients/fsi-sbefifo.c:557:43: warning: format '%d' expects argument of type 'int', but argument 3 has type 'ssize_t {aka long int}' [-Wformat=]
dev_err(fifo->dev, "FIFO write failed: %d\n", rv);
^
In file included from arch/blackfin/include/asm/bug.h:71:0,
from include/linux/bug.h:5,
from include/linux/thread_info.h:12,
from include/asm-generic/current.h:5,
from ./arch/blackfin/include/generated/asm/current.h:1,
from include/linux/mutex.h:14,
from include/linux/kernfs.h:13,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:21,
from include/linux/device.h:17,
from include/linux/fsi.h:18,
from drivers/fsi//clients/fsi-sbefifo.c:6:
drivers/fsi//clients/fsi-sbefifo.c:572:17: warning: format '%d' expects argument of type 'int', but argument 4 has type 'ssize_t {aka long int}' [-Wformat=]
WARN(rv > len, "Unreachable state: len: %d, rv: %d\n", len, rv);
^
include/asm-generic/bug.h:91:69: note: in definition of macro '__WARN_printf'
#define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg)
^~~
>> drivers/fsi//clients/fsi-sbefifo.c:572:2: note: in expansion of macro 'WARN'
WARN(rv > len, "Unreachable state: len: %d, rv: %d\n", len, rv);
^~~~
drivers/fsi//clients/fsi-sbefifo.c:572:17: warning: format '%d' expects argument of type 'int', but argument 5 has type 'ssize_t {aka long int}' [-Wformat=]
WARN(rv > len, "Unreachable state: len: %d, rv: %d\n", len, rv);
^
include/asm-generic/bug.h:91:69: note: in definition of macro '__WARN_printf'
#define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg)
^~~
>> drivers/fsi//clients/fsi-sbefifo.c:572:2: note: in expansion of macro 'WARN'
WARN(rv > len, "Unreachable state: len: %d, rv: %d\n", len, rv);
^~~~
drivers/fsi//clients/fsi-sbefifo.c: In function 'sbefifo_read':
drivers/fsi//clients/fsi-sbefifo.c:650:42: warning: format '%d' expects argument of type 'int', but argument 3 has type 'ssize_t {aka long int}' [-Wformat=]
dev_err(fifo->dev, "FIFO read failed: %d\n", rv);
^
drivers/fsi//clients/fsi-sbefifo.c: In function 'sbefifo_probe':
>> drivers/fsi//clients/fsi-sbefifo.c:769:2: error: implicit declaration of function 'setup_timer' [-Werror=implicit-function-declaration]
setup_timer(&fifo->poll.timer, sbefifo_poll_device,
^~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/setup_timer +769 drivers/fsi//clients/fsi-sbefifo.c
498
499 /**
500 * sbefifo_write()
501 *
502 * @client The client context for the SBEFIFO
503 * @buf The buffer of data to write, at least @len elements
504 * @len The number elements in @buffer
505 *
506 * The buffer must represent a complete chip-op: EOT is signalled after the
507 * last element is written to the upstream FIFO.
508 *
509 * Returns the number of elements written on success and negative values on
510 * failure. If the call is successful a subsequent call to sbefifo_read() MUST
511 * be made.
512 */
513 ssize_t sbefifo_write(struct sbefifo_client *client, const u32 *buf,
514 ssize_t len)
515 {
516 struct sbefifo *fifo = client->fifo;
517 unsigned long flags;
518 ssize_t rv;
519
520 spin_lock_irqsave(&fifo->wait.lock, flags);
521
522 if (client->state == sbefifo_client_active) {
523 dev_warn(fifo->dev, "Transfer already in progress\n");
524 spin_unlock_irqrestore(&fifo->wait.lock, flags);
525 return -EBUSY;
526 }
527
528 rv = wait_event_interruptible_locked_irq(fifo->wait,
529 fifo->state == sbefifo_ready ||
530 fifo->state == sbefifo_dead);
531 if (rv < 0) {
532 spin_unlock_irqrestore(&fifo->wait.lock, flags);
533 return rv;
534 }
535
536 if (fifo->state == sbefifo_dead) {
537 client->state = sbefifo_client_closed;
538 wake_up(&client->wait);
539 spin_unlock_irqrestore(&fifo->wait.lock, flags);
540 return -ENODEV;
541 }
542
543 WARN_ON(fifo->state != sbefifo_ready);
544
545 fifo->curr = client;
546 fifo->state = sbefifo_tx;
547
548 /* Move a threaded read() onto waiting for FIFO read readiness */
549 client->state = sbefifo_client_active;
550 wake_up(&client->wait);
551
552 spin_unlock_irqrestore(&fifo->wait.lock, flags);
553
554 /* FIFO Tx, reset the FIFO on error */
555 rv = sbefifo_up_write(fifo, buf, len);
556 if (rv < len) {
557 dev_err(fifo->dev, "FIFO write failed: %d\n", rv);
558 rv = sbefifo_reset(fifo);
559 if (rv < 0)
560 return rv;
561
562 spin_lock_irqsave(&fifo->wait.lock, flags);
563 fifo->state = sbefifo_ready;
564 client->state = sbefifo_client_idle;
565 wake_up(&client->wait);
566 wake_up_locked(&fifo->wait);
567 spin_unlock_irqrestore(&fifo->wait.lock, flags);
568
569 return -EIO;
570 }
571
> 572 WARN(rv > len, "Unreachable state: len: %d, rv: %d\n", len, rv);
573
574 /* Write completed successfully */
575 spin_lock_irqsave(&fifo->wait.lock, flags);
576 fifo->state = sbefifo_interval;
577 wake_up(&client->wait);
578 spin_unlock_irqrestore(&fifo->wait.lock, flags);
579
580 return rv;
581 }
582 EXPORT_SYMBOL_GPL(sbefifo_write);
583
584 /**
585 * sbefifo_read()
586 *
587 * @client The client context for the SBEFIFO
588 * @data The buffer of data to write, at least @len elements
589 * @len The number elements in @buffer
590 *
591 * Returns the number of elements read on success and negative values on
592 * failure. A return value of 0 indicates EOT.
593 */
594 ssize_t sbefifo_read(struct sbefifo_client *client, u32 *buf, ssize_t len)
595 {
596 struct sbefifo *fifo = client->fifo;
597 unsigned long flags;
598 ssize_t rv;
599
600 rv = wait_event_interruptible(client->wait,
601 (client->state == sbefifo_client_active ||
602 client->state == sbefifo_client_closed));
603 if (rv < 0)
604 return rv;
605
606 spin_lock_irqsave(&fifo->wait.lock, flags);
607 if (client->state == sbefifo_client_closed) {
608 spin_unlock_irqrestore(&fifo->wait.lock, flags);
609 return -EBADFD;
610 }
611
612 if (client->state == sbefifo_client_idle) {
613 spin_unlock_irqrestore(&fifo->wait.lock, flags);
614 return -EIO;
615 }
616
617 rv = wait_event_interruptible_locked_irq(fifo->wait,
618 fifo->state == sbefifo_interval ||
619 fifo->state == sbefifo_rx ||
620 fifo->state == sbefifo_ready ||
621 fifo->state == sbefifo_dead);
622 if (rv < 0) {
623 spin_unlock_irqrestore(&fifo->wait.lock, flags);
624 return rv;
625 }
626
627 if (fifo->state == sbefifo_ready) {
628 /* We've reset FIFO, whatever we were waiting for has gone */
629 client->state = sbefifo_client_idle;
630 /* We're done, wake another task up as the FIFO is ready */
631 wake_up_locked(&fifo->wait);
632 spin_unlock_irqrestore(&fifo->wait.lock, flags);
633 return -EIO;
634 }
635
636 if (fifo->state == sbefifo_dead) {
637 spin_unlock_irqrestore(&fifo->wait.lock, flags);
638 return -ENODEV;
639 }
640
641 fifo->state = sbefifo_rx;
642 spin_unlock_irqrestore(&fifo->wait.lock, flags);
643
644 rv = sbefifo_down_read(fifo, buf, len);
645 if (rv > 0)
646 return rv;
647
648 /* Reset the FIFO on error */
649 if (rv < 0) {
650 dev_err(fifo->dev, "FIFO read failed: %d\n", rv);
651 rv = sbefifo_reset(fifo);
652 if (rv < 0)
653 return rv;
654
655 rv = -EIO;
656 }
657
658 /* Read is complete one way or the other (0 length read or error) */
659 spin_lock_irqsave(&fifo->wait.lock, flags);
660 client->state = sbefifo_client_idle;
661
662 /* Queue next FIFO transfer */
663 fifo->curr = NULL;
664 fifo->state = sbefifo_ready;
665 wake_up_locked(&fifo->wait);
666
667 spin_unlock_irqrestore(&fifo->wait.lock, flags);
668
669 return rv;
670 }
671 EXPORT_SYMBOL_GPL(sbefifo_read);
672
673 /**
674 * sbefifo_release()
675 *
676 * @client The client context for the SBEFIFO
677 *
678 */
679 int sbefifo_release(struct sbefifo_client *client)
680 {
681 struct sbefifo *fifo = client->fifo;
682 enum sbefifo_client_state old;
683 unsigned long flags;
684 int rv;
685
686 /* Determine if we need to clean up */
687 spin_lock_irqsave(&client->fifo->wait.lock, flags);
688 old = client->state;
689 client->state = sbefifo_client_closed;
690
691 if (old == sbefifo_client_closed) {
692 spin_unlock_irqrestore(&fifo->wait.lock, flags);
693 return -EBADFD;
694 }
695
696 if (old == sbefifo_client_idle) {
697 spin_unlock_irqrestore(&fifo->wait.lock, flags);
698 return 0;
699 }
700
701 /* We need to clean up, get noisy about inconsistencies */
702 dev_warn(fifo->dev, "Releasing client with transfer in progress!\n");
703 WARN_ON(old != sbefifo_client_active);
704 WARN_ON(fifo->state == sbefifo_ready);
705
706 /* Mark ourselves as broken for cleanup */
707 fifo->state = sbefifo_broken;
708 fifo->curr = NULL;
709
710 wake_up(&client->wait);
711 spin_unlock_irqrestore(&client->fifo->wait.lock, flags);
712
713 /* Clean up poll waiter */
714 spin_lock_irqsave(&fifo->poll.wait.lock, flags);
715 del_timer_sync(&fifo->poll.timer);
716 fifo->poll.rv = -EBADFD;
717 wake_up_all_locked(&fifo->poll.wait);
718 spin_unlock_irqrestore(&fifo->poll.wait.lock, flags);
719
720 /* Reset the FIFO */
721 rv = sbefifo_reset(fifo);
722 if (rv < 0)
723 return rv;
724
725 /* Mark the FIFO as ready and wake pending transfer */
726 spin_lock_irqsave(&client->fifo->wait.lock, flags);
727 fifo->state = sbefifo_ready;
728 wake_up_locked(&fifo->wait);
729 spin_unlock_irqrestore(&client->fifo->wait.lock, flags);
730
731 return 0;
732 }
733 EXPORT_SYMBOL_GPL(sbefifo_release);
734
735 static int sbefifo_unregister_child(struct device *dev, void *data)
736 {
737 struct platform_device *pdev = to_platform_device(dev);
738
739 of_device_unregister(pdev);
740 if (dev->of_node)
741 of_node_clear_flag(dev->of_node, OF_POPULATED);
742
743 return 0;
744 }
745
746 static int sbefifo_probe(struct device *dev)
747 {
748 struct device_node *np;
749 struct sbefifo *fifo;
750 int child_idx;
751 u32 up, down;
752 int rv;
753
754 fifo = devm_kzalloc(dev, sizeof(*fifo), GFP_KERNEL);
755 if (!fifo)
756 return -ENOMEM;
757
758 fifo->dev = dev;
759 fifo->state = sbefifo_ready;
760 fifo->fsi = to_fsi_dev(dev);
761
762 fifo->id = ida_simple_get(&sbefifo_ida, 0, 0, GFP_KERNEL);
763 if (fifo->id < 0)
764 return fifo->id;
765
766 init_waitqueue_head(&fifo->wait);
767
768 /* No interrupts, need to poll the controller */
> 769 setup_timer(&fifo->poll.timer, sbefifo_poll_device,
770 (unsigned long)fifo);
771 init_waitqueue_head(&fifo->poll.wait);
772
773 rv = sbefifo_up_sts(fifo, &up);
774 if (rv < 0)
775 return rv;
776
777 rv = sbefifo_down_sts(fifo, &down);
778 if (rv < 0)
779 return rv;
780
781 if (!(sbefifo_empty(up) && sbefifo_empty(down))) {
782 dev_warn(fifo->dev, "FIFOs were not empty, requesting reset from SBE\n");
783 /* Request the SBE reset the FIFOs */
784 rv = sbefifo_reset(fifo);
785 if (rv == -ETIMEDOUT) {
786 dev_warn(fifo->dev, "SBE unresponsive, probing FIFO clients may fail. Performing hard FIFO reset\n");
787 rv = sbefifo_do_reset(fifo);
788 if (rv < 0)
789 return rv;
790 } else if (rv < 0) {
791 return rv;
792 }
793 }
794
795 dev_set_drvdata(dev, fifo);
796 list_add(&fifo->entry, &sbefifos);
797
798 child_idx = 0;
799 for_each_available_child_of_node(dev->of_node, np) {
800 struct platform_device *child;
801 char name[32];
802
803 snprintf(name, sizeof(name), "sbefifo%d-dev%d", fifo->id,
804 child_idx++);
805 child = of_platform_device_create(np, name, dev);
806 if (!child)
807 dev_warn(dev, "Failed to create platform device %s\n",
808 name);
809 }
810
811 return 0;
812 }
813
---
0-DAY kernel test infrastructure Open Source Technology Center
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