From: kernel test robot <lkp@intel.com>
To: cros-kernel-buildreports@googlegroups.com
Cc: oe-kbuild-all@lists.linux.dev
Subject: [android-common:android15-6.6 0/1] drivers/usb/host/xhci-sideband.c:282: warning: Function parameter or member 'intr_num' not described in 'xhci_sideband_create_interrupter'
Date: Mon, 11 Aug 2025 17:47:06 +0200 [thread overview]
Message-ID: <202508111744.34d5zLO8-lkp@intel.com> (raw)
tree: https://android.googlesource.com/kernel/common android15-6.6
head: f66b79911ed8ccb29c3129f3b35fbb418395f189
commit: f5a5187f7ea13f11dee77d4bd6ab2d4e367cd153 [0/1] FROMLIST: usb: host: xhci-mem: Allow for interrupter clients to choose specific index
config: x86_64-buildonly-randconfig-2003-20250811 (https://download.01.org/0day-ci/archive/20250811/202508111744.34d5zLO8-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250811/202508111744.34d5zLO8-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508111744.34d5zLO8-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/usb/host/xhci-sideband.c:282: warning: Function parameter or member 'intr_num' not described in 'xhci_sideband_create_interrupter'
vim +282 drivers/usb/host/xhci-sideband.c
fb897bf907b803 Wesley Cheng 2024-02-01 263
1415683defb2a1 Mathias Nyman 2023-02-06 264 /**
1415683defb2a1 Mathias Nyman 2023-02-06 265 * xhci_sideband_create_interrupter - creates a new interrupter for this sideband
1415683defb2a1 Mathias Nyman 2023-02-06 266 * @sb: sideband instance for this usb device
1415683defb2a1 Mathias Nyman 2023-02-06 267 * @num_seg: number of event ring segments to allocate
1415683defb2a1 Mathias Nyman 2023-02-06 268 * @ip_autoclear: IP autoclearing support such as MSI implemented
1415683defb2a1 Mathias Nyman 2023-02-06 269 *
1415683defb2a1 Mathias Nyman 2023-02-06 270 * Sets up a xhci interrupter that can be used for this sideband accessed usb
1415683defb2a1 Mathias Nyman 2023-02-06 271 * device. Transfer events for this device can be routed to this interrupters
1415683defb2a1 Mathias Nyman 2023-02-06 272 * event ring by setting the 'Interrupter Target' field correctly when queueing
1415683defb2a1 Mathias Nyman 2023-02-06 273 * the transfer TRBs.
1415683defb2a1 Mathias Nyman 2023-02-06 274 * Once this interrupter is created the interrupter target ID can be obtained
1415683defb2a1 Mathias Nyman 2023-02-06 275 * by calling xhci_sideband_interrupter_id()
1415683defb2a1 Mathias Nyman 2023-02-06 276 *
1415683defb2a1 Mathias Nyman 2023-02-06 277 * Returns 0 on success, negative error otherwise
1415683defb2a1 Mathias Nyman 2023-02-06 278 */
1415683defb2a1 Mathias Nyman 2023-02-06 279 int
1415683defb2a1 Mathias Nyman 2023-02-06 280 xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg,
f5a5187f7ea13f Wesley Cheng 2023-05-09 281 int intr_num, bool ip_autoclear)
1415683defb2a1 Mathias Nyman 2023-02-06 @282 {
1415683defb2a1 Mathias Nyman 2023-02-06 283 int ret = 0;
1415683defb2a1 Mathias Nyman 2023-02-06 284
1415683defb2a1 Mathias Nyman 2023-02-06 285 if (!sb)
1415683defb2a1 Mathias Nyman 2023-02-06 286 return -ENODEV;
1415683defb2a1 Mathias Nyman 2023-02-06 287
1415683defb2a1 Mathias Nyman 2023-02-06 288 mutex_lock(&sb->mutex);
1415683defb2a1 Mathias Nyman 2023-02-06 289 if (sb->ir) {
1415683defb2a1 Mathias Nyman 2023-02-06 290 ret = -EBUSY;
1415683defb2a1 Mathias Nyman 2023-02-06 291 goto out;
1415683defb2a1 Mathias Nyman 2023-02-06 292 }
1415683defb2a1 Mathias Nyman 2023-02-06 293
1415683defb2a1 Mathias Nyman 2023-02-06 294 sb->ir = xhci_create_secondary_interrupter(xhci_to_hcd(sb->xhci),
f5a5187f7ea13f Wesley Cheng 2023-05-09 295 num_seg, intr_num);
1415683defb2a1 Mathias Nyman 2023-02-06 296 if (!sb->ir) {
1415683defb2a1 Mathias Nyman 2023-02-06 297 ret = -ENOMEM;
1415683defb2a1 Mathias Nyman 2023-02-06 298 goto out;
1415683defb2a1 Mathias Nyman 2023-02-06 299 }
1415683defb2a1 Mathias Nyman 2023-02-06 300
1415683defb2a1 Mathias Nyman 2023-02-06 301 sb->ir->ip_autoclear = ip_autoclear;
fb897bf907b803 Wesley Cheng 2024-02-01 302 /* skip events for secondary interrupters by default */
fb897bf907b803 Wesley Cheng 2024-02-01 303 sb->ir->skip_events = true;
1415683defb2a1 Mathias Nyman 2023-02-06 304
1415683defb2a1 Mathias Nyman 2023-02-06 305 out:
1415683defb2a1 Mathias Nyman 2023-02-06 306 mutex_unlock(&sb->mutex);
1415683defb2a1 Mathias Nyman 2023-02-06 307
1415683defb2a1 Mathias Nyman 2023-02-06 308 return ret;
1415683defb2a1 Mathias Nyman 2023-02-06 309 }
1415683defb2a1 Mathias Nyman 2023-02-06 310 EXPORT_SYMBOL_GPL(xhci_sideband_create_interrupter);
1415683defb2a1 Mathias Nyman 2023-02-06 311
:::::: The code at line 282 was first introduced by commit
:::::: 1415683defb2a1f23ea70f1038bf6f4ddc715018 FROMLIST: xhci: sideband: add initial api to register a sideband entity
:::::: TO: Mathias Nyman <mathias.nyman@linux.intel.com>
:::::: CC: Carlos Llamas <cmllamas@google.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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