tree: https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git testing/next head: f2fedb17e8946a24c9cf2bd20ee466fb8659196a commit: 46ed5b0c1fac208e727c8cea6c2db44a77fc256a [31/41] usb: mtu3: support 36-bit DMA address config: mips-allyesconfig (attached as .config) compiler: mips-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 46ed5b0c1fac208e727c8cea6c2db44a77fc256a # save the attached .config to linux build tree make.cross ARCH=mips
All warnings (new ones prefixed by >>):
In file included from include/linux/printk.h:329:0,
from include/linux/kernel.h:13,
from include/asm-generic/bug.h:15,
from arch/mips/include/asm/bug.h:41,
from include/linux/bug.h:4,
from include/linux/scatterlist.h:6,
from include/linux/dmapool.h:14,
from drivers/usb/mtu3/mtu3_qmu.c:30:
drivers/usb/mtu3/mtu3_qmu.c: In function 'mtu3_prepare_tx_gpd':
>> drivers/usb/mtu3/mtu3_qmu.c:261:25: warning: format '%p' expects argument of
>> type 'void *', but argument 7 has type 'dma_addr_t {aka unsigned int}'
>> [-Wformat=]
dev_dbg(mep->mtu->dev, "TX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
^
include/linux/dynamic_debug.h:134:39: note: in definition of macro
'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/usb/mtu3/mtu3_qmu.c:261:2: note: in expansion of macro 'dev_dbg'
dev_dbg(mep->mtu->dev, "TX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
^~~~~~~
drivers/usb/mtu3/mtu3_qmu.c: In function 'mtu3_prepare_rx_gpd':
drivers/usb/mtu3/mtu3_qmu.c:300:25: warning: format '%p' expects argument of
type 'void *', but argument 7 has type 'dma_addr_t {aka unsigned int}'
[-Wformat=]
dev_dbg(mep->mtu->dev, "RX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
^
include/linux/dynamic_debug.h:134:39: note: in definition of macro
'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/usb/mtu3/mtu3_qmu.c:300:2: note: in expansion of macro 'dev_dbg'
dev_dbg(mep->mtu->dev, "RX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
^~~~~~~
vim +261 drivers/usb/mtu3/mtu3_qmu.c
240
241 static int mtu3_prepare_tx_gpd(struct mtu3_ep *mep, struct mtu3_request
*mreq)
242 {
243 struct qmu_gpd *enq;
244 struct mtu3_gpd_ring *ring = &mep->gpd_ring;
245 struct qmu_gpd *gpd = ring->enqueue;
246 struct usb_request *req = &mreq->request;
247 dma_addr_t enq_dma;
248 u16 ext_addr;
249
250 /* set all fields to zero as default value */
251 memset(gpd, 0, sizeof(*gpd));
252
253 gpd->buffer = cpu_to_le32(lower_32_bits(req->dma));
254 ext_addr = GPD_EXT_BUF(upper_32_bits(req->dma));
255 gpd->buf_len = cpu_to_le16(req->length);
256 gpd->flag |= GPD_FLAGS_IOC;
257
258 /* get the next GPD */
259 enq = advance_enq_gpd(ring);
260 enq_dma = gpd_virt_to_dma(ring, enq);
> 261 dev_dbg(mep->mtu->dev, "TX-EP%d queue gpd=%p, enq=%p,
> qdma=%pad\n",
262 mep->epnum, gpd, enq, enq_dma);
263
264 enq->flag &= ~GPD_FLAGS_HWO;
265 gpd->next_gpd = cpu_to_le32(lower_32_bits(enq_dma));
266 ext_addr |= GPD_EXT_NGP(upper_32_bits(enq_dma));
267 gpd->tx_ext_addr = cpu_to_le16(ext_addr);
268
269 if (req->zero)
270 gpd->ext_flag |= GPD_EXT_FLAG_ZLP;
271
272 gpd->chksum = qmu_calc_checksum((u8 *)gpd);
273 gpd->flag |= GPD_FLAGS_HWO;
274
275 mreq->gpd = gpd;
276
277 return 0;
278 }
279
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