Hi Marcus, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on balbi-usb/next] [also build test WARNING on v4.17-rc7] [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/Marcus-Folkesson/usb-gadget-ccid-add-support-for-USB-CCID-Gadget-Device/20180529-014427 base: https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git next config: s390-allyesconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 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=s390 All warnings (new ones prefixed by >>): In file included from include/linux/printk.h:332:0, from include/linux/kernel.h:14, from include/linux/list.h:9, from include/linux/kobject.h:19, from include/linux/cdev.h:5, from drivers/usb/gadget/function/f_ccid.c:8: drivers/usb/gadget/function/f_ccid.c: In function 'ccidg_bulk_read': >> drivers/usb/gadget/function/f_ccid.c:612:5: warning: format '%i' expects >> argument of type 'int', but argument 4 has type 'size_t {aka long unsigned >> int}' [-Wformat=] "ccid: too small buffer size. %i provided, need at least %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ >> drivers/usb/gadget/function/f_ccid.c:611:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ >> drivers/usb/gadget/function/f_ccid.c:612:5: warning: format '%i' expects >> argument of type 'int', but argument 5 has type 'long unsigned int' >> [-Wformat=] "ccid: too small buffer size. %i provided, need at least %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ >> drivers/usb/gadget/function/f_ccid.c:611:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ drivers/usb/gadget/function/f_ccid.c: In function 'ccidg_bulk_write': drivers/usb/gadget/function/f_ccid.c:683:5: warning: format '%i' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}' [-Wformat=] "ccid: too much data. %i provided, but we can only handle %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ drivers/usb/gadget/function/f_ccid.c:682:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ drivers/usb/gadget/function/f_ccid.c:683:5: warning: format '%i' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] "ccid: too much data. %i provided, but we can only handle %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ drivers/usb/gadget/function/f_ccid.c:682:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ -- In file included from include/linux/printk.h:332:0, from include/linux/kernel.h:14, from include/linux/list.h:9, from include/linux/kobject.h:19, from include/linux/cdev.h:5, from drivers/usb//gadget/function/f_ccid.c:8: drivers/usb//gadget/function/f_ccid.c: In function 'ccidg_bulk_read': drivers/usb//gadget/function/f_ccid.c:612:5: warning: format '%i' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}' [-Wformat=] "ccid: too small buffer size. %i provided, need at least %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ drivers/usb//gadget/function/f_ccid.c:611:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ drivers/usb//gadget/function/f_ccid.c:612:5: warning: format '%i' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] "ccid: too small buffer size. %i provided, need at least %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ drivers/usb//gadget/function/f_ccid.c:611:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ drivers/usb//gadget/function/f_ccid.c: In function 'ccidg_bulk_write': drivers/usb//gadget/function/f_ccid.c:683:5: warning: format '%i' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}' [-Wformat=] "ccid: too much data. %i provided, but we can only handle %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ drivers/usb//gadget/function/f_ccid.c:682:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ drivers/usb//gadget/function/f_ccid.c:683:5: warning: format '%i' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] "ccid: too much data. %i provided, but we can only handle %i\n", ^ include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg' __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~ >> include/linux/usb/composite.h:632:2: note: in expansion of macro 'dev_dbg' dev_dbg(&(d)->gadget->dev , fmt , ## args) ^~~~~~~ drivers/usb//gadget/function/f_ccid.c:682:3: note: in expansion of macro 'DBG' DBG(ccidg->function.config->cdev, ^~~ vim +612 drivers/usb/gadget/function/f_ccid.c 599 600 static ssize_t ccidg_bulk_read(struct file *file, char __user *buf, 601 size_t count, loff_t *pos) 602 { 603 struct f_ccidg *ccidg = file->private_data; 604 struct ccidg_bulk_dev *bulk_dev = &ccidg->bulk_dev; 605 struct usb_request *req; 606 int r = count, xfer; 607 int ret; 608 609 /* Make sure we have enough space for a whole package */ 610 if (count < sizeof(struct ccidg_bulk_out_header)) { > 611 DBG(ccidg->function.config->cdev, > 612 "ccid: too small buffer size. %i > provided, need at least %i\n", 613 count, sizeof(struct ccidg_bulk_out_header)); 614 return -ENOMEM; 615 } 616 617 if (!atomic_read(&ccidg->online)) 618 return -ENODEV; 619 620 /* queue a request */ 621 req = bulk_dev->rx_req; 622 req->length = count; 623 atomic_set(&bulk_dev->rx_done, 0); 624 625 ret = usb_ep_queue(ccidg->out, req, GFP_KERNEL); 626 if (ret < 0) { 627 ERROR(ccidg->function.config->cdev, 628 "ccid: usb ep queue failed\n"); 629 return -EIO; 630 } 631 632 if (!atomic_read(&bulk_dev->rx_done) && 633 file->f_flags & (O_NONBLOCK | O_NDELAY)) 634 return -EAGAIN; 635 636 /* wait for a request to complete */ 637 ret = wait_event_interruptible(bulk_dev->read_wq, 638 atomic_read(&bulk_dev->rx_done) || 639 !atomic_read(&ccidg->online)); 640 if (ret < 0) { 641 usb_ep_dequeue(ccidg->out, req); 642 return -ERESTARTSYS; 643 } 644 645 /* Still online? */ 646 if (!atomic_read(&ccidg->online)) 647 return -ENODEV; 648 649 atomic_set(&bulk_dev->rx_req_busy, 1); 650 xfer = (req->actual < count) ? req->actual : count; 651 652 if (copy_to_user(buf, req->buf, xfer)) 653 r = -EFAULT; 654 655 atomic_set(&bulk_dev->rx_req_busy, 0); 656 if (!atomic_read(&ccidg->online)) { 657 ccidg_request_free(bulk_dev->rx_req, ccidg->out); 658 return -ENODEV; 659 } 660 661 return xfer; 662 } 663 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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