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Message-ID: <202409011052.hHoEnTUy-lkp@intel.com>
Date: Sun, 1 Sep 2024 10:28:14 +0800
From: kernel test robot <lkp@...el.com>
To: Umang Jain <umang.jain@...asonboard.com>,
Florian Fainelli <florian.fainelli@...adcom.com>,
Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-staging@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Kieran Bingham <kieran.bingham@...asonboard.com>,
Arnd Bergmann <arnd@...db.de>, Stefan Wahren <wahrenst@....net>,
Dave Stevenson <dave.stevenson@...pberrypi.com>,
Phil Elwell <phil@...pberrypi.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Umang Jain <umang.jain@...asonboard.com>
Subject: Re: [PATCH v2 1/7] staging: vchiq: Factor out bulk transfer for
VCHIQ_BULK_MODE_WAITING
Hi Umang,
kernel test robot noticed the following build warnings:
[auto build test WARNING on staging/staging-testing]
url: https://github.com/intel-lab-lkp/linux/commits/Umang-Jain/staging-vchiq-Factor-out-bulk-transfer-for-VCHIQ_BULK_MODE_WAITING/20240901-002839
base: staging/staging-testing
patch link: https://lore.kernel.org/r/20240831162435.191084-2-umang.jain%40ideasonboard.com
patch subject: [PATCH v2 1/7] staging: vchiq: Factor out bulk transfer for VCHIQ_BULK_MODE_WAITING
config: i386-buildonly-randconfig-001-20240901 (https://download.01.org/0day-ci/archive/20240901/202409011052.hHoEnTUy-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240901/202409011052.hHoEnTUy-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409011052.hHoEnTUy-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c: In function 'vchiq_bulk_xfer_waiting_interruptible':
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c:3152:28: warning: variable 'bulk' set but not used [-Wunused-but-set-variable]
3152 | struct vchiq_bulk *bulk;
| ^~~~
vim +/bulk +3152 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
3140
3141 /*
3142 * This function is called by VCHIQ ioctl interface and is interruptible.
3143 * It may receive -EAGAIN to indicate that a signal has been received
3144 * and the call should be retried after being returned to user context.
3145 */
3146 int
3147 vchiq_bulk_xfer_waiting_interruptible(struct vchiq_instance *instance,
3148 unsigned int handle, struct bulk_waiter *userdata)
3149 {
3150 struct vchiq_service *service = find_service_by_handle(instance, handle);
3151 struct bulk_waiter *bulk_waiter;
> 3152 struct vchiq_bulk *bulk;
3153 int status = -EINVAL;
3154
3155 if (!service)
3156 goto error_exit;
3157
3158 if (!userdata)
3159 goto error_exit;
3160
3161 if (service->srvstate != VCHIQ_SRVSTATE_OPEN)
3162 goto error_exit;
3163
3164 if (vchiq_check_service(service))
3165 goto error_exit;
3166
3167 bulk_waiter = userdata;
3168 bulk = bulk_waiter->bulk;
3169
3170 vchiq_service_put(service);
3171
3172 status = 0;
3173
3174 if (wait_for_completion_interruptible(&bulk_waiter->event))
3175 return -EAGAIN;
3176 else if (bulk_waiter->actual == VCHIQ_BULK_ACTUAL_ABORTED)
3177 return -EINVAL;
3178
3179 return status;
3180
3181 error_exit:
3182 if (service)
3183 vchiq_service_put(service);
3184 return status;
3185 }
3186
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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