From: Michal Nazarewicz Date: Tue, 31 May 2016 12:17:21 +0000 (+0200) Subject: usb: gadget: fix unused-but-set-variale warnings X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=872ce5119524f33fafacc4d9610a431185ea66a2;p=linux-beck.git usb: gadget: fix unused-but-set-variale warnings Those are enabled with W=1 make option. The patch leaves of some type-limits warnings which are caused by generic macros used in a way where they produce always-false conditions. Signed-off-by: Michal Nazarewicz Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index cc33d2667408..70ed37065bab 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -2227,8 +2227,8 @@ static int __ffs_data_got_strings(struct ffs_data *ffs, { u32 str_count, needed_count, lang_count; struct usb_gadget_strings **stringtabs, *t; - struct usb_string *strings, *s; const char *data = _data; + struct usb_string *s; ENTER(); @@ -2286,7 +2286,6 @@ static int __ffs_data_got_strings(struct ffs_data *ffs, stringtabs = vla_ptr(vlabuf, d, stringtabs); t = vla_ptr(vlabuf, d, stringtab); s = vla_ptr(vlabuf, d, strings); - strings = s; } /* For each language */ diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c index 3580f198df8b..6ded6345cd09 100644 --- a/drivers/usb/gadget/function/u_serial.c +++ b/drivers/usb/gadget/function/u_serial.c @@ -907,7 +907,6 @@ static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count) { struct gs_port *port = tty->driver_data; unsigned long flags; - int status; pr_vdebug("gs_write: ttyGS%d (%p) writing %d bytes\n", port->port_num, tty, count); @@ -917,7 +916,7 @@ static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count) count = gs_buf_put(&port->port_write_buf, buf, count); /* treat count == 0 as flush_chars() */ if (port->port_usb) - status = gs_start_tx(port); + gs_start_tx(port); spin_unlock_irqrestore(&port->port_lock, flags); return count; diff --git a/drivers/usb/gadget/legacy/g_ffs.c b/drivers/usb/gadget/legacy/g_ffs.c index f85639ef8a8f..6da7316f8e87 100644 --- a/drivers/usb/gadget/legacy/g_ffs.c +++ b/drivers/usb/gadget/legacy/g_ffs.c @@ -265,7 +265,7 @@ static void *functionfs_acquire_dev(struct ffs_dev *dev) { if (!try_module_get(THIS_MODULE)) return ERR_PTR(-ENOENT); - + return NULL; } @@ -275,7 +275,7 @@ static void functionfs_release_dev(struct ffs_dev *dev) } /* - * The caller of this function takes ffs_lock + * The caller of this function takes ffs_lock */ static int functionfs_ready_callback(struct ffs_data *ffs) { @@ -294,12 +294,12 @@ static int functionfs_ready_callback(struct ffs_data *ffs) ++missing_funcs; gfs_registered = false; } - + return ret; } /* - * The caller of this function takes ffs_lock + * The caller of this function takes ffs_lock */ static void functionfs_closed_callback(struct ffs_data *ffs) { @@ -347,17 +347,14 @@ static int gfs_bind(struct usb_composite_dev *cdev) #ifdef CONFIG_USB_FUNCTIONFS_RNDIS { - struct f_rndis_opts *rndis_opts; - fi_rndis = usb_get_function_instance("rndis"); if (IS_ERR(fi_rndis)) { ret = PTR_ERR(fi_rndis); goto error; } - rndis_opts = container_of(fi_rndis, struct f_rndis_opts, - func_inst); #ifndef CONFIG_USB_FUNCTIONFS_ETH - net = rndis_opts->net; + net = container_of(fi_rndis, struct f_rndis_opts, + func_inst)->net; #endif } #endif diff --git a/drivers/usb/gadget/udc/amd5536udc.c b/drivers/usb/gadget/udc/amd5536udc.c index 39d70b4a8958..ea03ca7ae29a 100644 --- a/drivers/usb/gadget/udc/amd5536udc.c +++ b/drivers/usb/gadget/udc/amd5536udc.c @@ -2340,7 +2340,6 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix) struct udc_ep *ep; struct udc_request *req; struct udc_data_dma *td; - unsigned dma_done; unsigned len; ep = &dev->ep[ep_ix]; @@ -2385,13 +2384,8 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix) */ if (use_dma_ppb_du) { td = udc_get_last_dma_desc(req); - if (td) { - dma_done = - AMD_GETBITS(td->status, - UDC_DMA_IN_STS_BS); - /* don't care DMA done */ + if (td) req->req.actual = req->req.length; - } } else { /* assume all bytes transferred */ req->req.actual = req->req.length; @@ -3417,4 +3411,3 @@ module_pci_driver(udc_pci_driver); MODULE_DESCRIPTION(UDC_MOD_DESCRIPTION); MODULE_AUTHOR("Thomas Dahlmann"); MODULE_LICENSE("GPL"); - diff --git a/drivers/usb/gadget/udc/bdc/bdc_cmd.c b/drivers/usb/gadget/udc/bdc/bdc_cmd.c index 6a4155c4bd86..4d5e9188beae 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_cmd.c +++ b/drivers/usb/gadget/udc/bdc/bdc_cmd.c @@ -57,7 +57,6 @@ static int bdc_submit_cmd(struct bdc *bdc, u32 cmd_sc, u32 param0, u32 param1, u32 param2) { u32 temp, cmd_status; - int reset_bdc = 0; int ret; temp = bdc_readl(bdc->regs, BDC_CMDSC); @@ -94,7 +93,6 @@ static int bdc_submit_cmd(struct bdc *bdc, u32 cmd_sc, case BDC_CMDS_INTL: dev_err(bdc->dev, "BDC Internal error\n"); - reset_bdc = 1; ret = -ECONNRESET; break; @@ -102,7 +100,6 @@ static int bdc_submit_cmd(struct bdc *bdc, u32 cmd_sc, dev_err(bdc->dev, "command timedout waited for %dusec\n", BDC_CMD_TIMEOUT); - reset_bdc = 1; ret = -ECONNRESET; break; default: diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c index d6199507f861..650717e7192a 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_ep.c +++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c @@ -702,11 +702,9 @@ static int ep0_queue(struct bdc_ep *ep, struct bdc_req *req) /* Queue data stage */ static int ep0_queue_data_stage(struct bdc *bdc) { - struct usb_request *ep0_usb_req; struct bdc_ep *ep; dev_dbg(bdc->dev, "%s\n", __func__); - ep0_usb_req = &bdc->ep0_req.usb_req; ep = bdc->bdc_ep_array[1]; bdc->ep0_req.ep = ep; bdc->ep0_req.usb_req.complete = NULL; @@ -1393,10 +1391,8 @@ static int ep0_set_sel(struct bdc *bdc, { struct bdc_ep *ep; u16 wLength; - u16 wValue; dev_dbg(bdc->dev, "%s\n", __func__); - wValue = le16_to_cpu(setup_pkt->wValue); wLength = le16_to_cpu(setup_pkt->wLength); if (unlikely(wLength != 6)) { dev_err(bdc->dev, "%s Wrong wLength:%d\n", __func__, wLength); diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index dde44450dfa9..77d07904f932 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -647,12 +647,10 @@ static int dummy_disable(struct usb_ep *_ep) static struct usb_request *dummy_alloc_request(struct usb_ep *_ep, gfp_t mem_flags) { - struct dummy_ep *ep; struct dummy_request *req; if (!_ep) return NULL; - ep = usb_ep_to_dummy_ep(_ep); req = kzalloc(sizeof(*req), mem_flags); if (!req) @@ -2444,9 +2442,6 @@ static int dummy_start(struct usb_hcd *hcd) static void dummy_stop(struct usb_hcd *hcd) { - struct dummy *dum; - - dum = hcd_to_dummy_hcd(hcd)->dum; device_remove_file(dummy_dev(hcd_to_dummy_hcd(hcd)), &dev_attr_urbs); dev_info(dummy_dev(hcd_to_dummy_hcd(hcd)), "stopped\n"); } diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c index 81b6229c7805..ce73b3552269 100644 --- a/drivers/usb/gadget/udc/mv_udc_core.c +++ b/drivers/usb/gadget/udc/mv_udc_core.c @@ -129,7 +129,7 @@ static int process_ep_req(struct mv_udc *udc, int index, { struct mv_dtd *curr_dtd; struct mv_dqh *curr_dqh; - int td_complete, actual, remaining_length; + int actual, remaining_length; int i, direction; int retval = 0; u32 errors; @@ -139,7 +139,6 @@ static int process_ep_req(struct mv_udc *udc, int index, direction = index % 2; curr_dtd = curr_req->head; - td_complete = 0; actual = curr_req->req.length; for (i = 0; i < curr_req->dtd_count; i++) { @@ -412,11 +411,8 @@ static int req_to_dtd(struct mv_req *req) unsigned count; int is_last, is_first = 1; struct mv_dtd *dtd, *last_dtd = NULL; - struct mv_udc *udc; dma_addr_t dma; - udc = req->ep->udc; - do { dtd = build_dtd(req, &count, &dma, &is_last); if (dtd == NULL) @@ -567,7 +563,7 @@ static int mv_ep_disable(struct usb_ep *_ep) struct mv_udc *udc; struct mv_ep *ep; struct mv_dqh *dqh; - u32 bit_pos, epctrlx, direction; + u32 epctrlx, direction; unsigned long flags; ep = container_of(_ep, struct mv_ep, ep); @@ -582,7 +578,6 @@ static int mv_ep_disable(struct usb_ep *_ep) spin_lock_irqsave(&udc->lock, flags); direction = ep_dir(ep); - bit_pos = 1 << ((direction == EP_DIR_OUT ? 0 : 16) + ep->ep_num); /* Reset the max packet length and the interrupt on Setup */ dqh->max_packet_length = 0; diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c index 18f5ebd447b8..7c6113432093 100644 --- a/drivers/usb/gadget/udc/net2272.c +++ b/drivers/usb/gadget/udc/net2272.c @@ -329,12 +329,10 @@ static int net2272_disable(struct usb_ep *_ep) static struct usb_request * net2272_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) { - struct net2272_ep *ep; struct net2272_request *req; if (!_ep) return NULL; - ep = container_of(_ep, struct net2272_ep, ep); req = kzalloc(sizeof(*req), gfp_flags); if (!req) @@ -348,10 +346,8 @@ net2272_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) static void net2272_free_request(struct usb_ep *_ep, struct usb_request *_req) { - struct net2272_ep *ep; struct net2272_request *req; - ep = container_of(_ep, struct net2272_ep, ep); if (!_ep || !_req) return; diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c index ebc51ec5790a..8ad847a5d4e4 100644 --- a/drivers/usb/gadget/udc/pch_udc.c +++ b/drivers/usb/gadget/udc/pch_udc.c @@ -1984,9 +1984,8 @@ static int pch_udc_pcd_set_halt(struct usb_ep *usbep, int halt) if (ep->num == PCH_UDC_EP0) ep->dev->stall = 1; pch_udc_ep_set_stall(ep); - pch_udc_enable_ep_interrupts(ep->dev, - PCH_UDC_EPINT(ep->in, - ep->num)); + pch_udc_enable_ep_interrupts( + ep->dev, PCH_UDC_EPINT(ep->in, ep->num)); } else { pch_udc_ep_clear_stall(ep); } @@ -2451,16 +2450,11 @@ static void pch_udc_svc_control_out(struct pch_udc_dev *dev) */ static void pch_udc_postsvc_epinters(struct pch_udc_dev *dev, int ep_num) { - struct pch_udc_ep *ep; - struct pch_udc_request *req; - - ep = &dev->ep[UDC_EPIN_IDX(ep_num)]; - if (!list_empty(&ep->queue)) { - req = list_entry(ep->queue.next, struct pch_udc_request, queue); - pch_udc_enable_ep_interrupts(ep->dev, - PCH_UDC_EPINT(ep->in, ep->num)); - pch_udc_ep_clear_nak(ep); - } + struct pch_udc_ep *ep = &dev->ep[UDC_EPIN_IDX(ep_num)]; + if (list_empty(&ep->queue)) + return; + pch_udc_enable_ep_interrupts(ep->dev, PCH_UDC_EPINT(ep->in, ep->num)); + pch_udc_ep_clear_nak(ep); } /** diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c index 1cbb0ac6b182..f8bf290f1894 100644 --- a/drivers/usb/gadget/udc/udc-xilinx.c +++ b/drivers/usb/gadget/udc/udc-xilinx.c @@ -2055,7 +2055,6 @@ static int xudc_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct resource *res; struct xusb_udc *udc; - struct xusb_ep *ep0; int irq; int ret; u32 ier; @@ -2119,8 +2118,6 @@ static int xudc_probe(struct platform_device *pdev) xudc_eps_init(udc); - ep0 = &udc->ep[0]; - /* Set device address to 0.*/ udc->write_fn(udc->addr, XUSB_ADDRESS_OFFSET, 0);