From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0CBBBEA0 for ; Sun, 12 Feb 2023 02:19:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676168375; x=1707704375; h=date:from:to:cc:subject:message-id:mime-version; bh=qfGLUbBFb8NveHPwZBSJ5LhGTowNffwQbWzHtSGiR24=; b=kxTVWrk12oMwdthRvYqpwWvUyQjs7JBXAfbF2LGqNG9UvK6JwThKUcyj cePatSyja866dIzCoW5RWt7Y6u4DQ8hBszO+5dIFg6Q7XuSHld7IR2mzM RxouRe+CeF+uB+Gmjkfc5D/BXZMuIAPefNTWXEnMipv73mBRmgMsE7I5T unhe6rbFioue8AKxHVmoH2Q/PK0HIympZ2Xjf+s6kAigM+ytZWTd5Hsm7 uKYt4/1trcTlVcj59EElZQHi/UoNZQEIibluhRMkZVsT3R/fsrIyav/Jb buT7Kpf64+U99F5YVINNMMl5btTW+rX2sTcVimVMVEgt1bycLoBmSBJsn w==; X-IronPort-AV: E=McAfee;i="6500,9779,10618"; a="328380451" X-IronPort-AV: E=Sophos;i="5.97,290,1669104000"; d="scan'208";a="328380451" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Feb 2023 18:19:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10618"; a="757176029" X-IronPort-AV: E=Sophos;i="5.97,290,1669104000"; d="scan'208";a="757176029" Received: from lkp-server01.sh.intel.com (HELO 4455601a8d94) ([10.239.97.150]) by FMSMGA003.fm.intel.com with ESMTP; 11 Feb 2023 18:19:32 -0800 Received: from kbuild by 4455601a8d94 with local (Exim 4.96) (envelope-from ) id 1pR1xj-0006xB-2O; Sun, 12 Feb 2023 02:19:31 +0000 Date: Sun, 12 Feb 2023 10:18:52 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: drivers/iommu/iommufd/selftest.c:371 iommufd_test_md_check_pa() error: uninitialized symbol 'mock'. Message-ID: <202302121041.rhE12hKn-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Jason Gunthorpe tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f339c2597ebb00e738f2b6328c14804ed19f5d57 commit: f4b20bb34c83dceade5470288f48f94ce3598ada iommufd: Add kernel support for testing iommufd date: 2 months ago :::::: branch date: 2 hours ago :::::: commit date: 2 months ago config: parisc-randconfig-m031-20230209 (https://download.01.org/0day-ci/archive/20230212/202302121041.rhE12hKn-lkp@intel.com/config) compiler: hppa-linux-gcc (GCC) 12.1.0 If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Link: https://lore.kernel.org/r/202302121041.rhE12hKn-lkp@intel.com/ smatch warnings: drivers/iommu/iommufd/selftest.c:371 iommufd_test_md_check_pa() error: uninitialized symbol 'mock'. vim +/mock +371 drivers/iommu/iommufd/selftest.c f4b20bb34c83dc Jason Gunthorpe 2022-11-29 334 f4b20bb34c83dc Jason Gunthorpe 2022-11-29 335 /* Check that every pfn under each iova matches the pfn under a user VA */ f4b20bb34c83dc Jason Gunthorpe 2022-11-29 336 static int iommufd_test_md_check_pa(struct iommufd_ucmd *ucmd, f4b20bb34c83dc Jason Gunthorpe 2022-11-29 337 unsigned int mockpt_id, unsigned long iova, f4b20bb34c83dc Jason Gunthorpe 2022-11-29 338 size_t length, void __user *uptr) f4b20bb34c83dc Jason Gunthorpe 2022-11-29 339 { f4b20bb34c83dc Jason Gunthorpe 2022-11-29 340 struct iommufd_hw_pagetable *hwpt; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 341 struct mock_iommu_domain *mock; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 342 int rc; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 343 f4b20bb34c83dc Jason Gunthorpe 2022-11-29 344 if (iova % MOCK_IO_PAGE_SIZE || length % MOCK_IO_PAGE_SIZE || f4b20bb34c83dc Jason Gunthorpe 2022-11-29 345 (uintptr_t)uptr % MOCK_IO_PAGE_SIZE) f4b20bb34c83dc Jason Gunthorpe 2022-11-29 346 return -EINVAL; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 347 f4b20bb34c83dc Jason Gunthorpe 2022-11-29 348 hwpt = get_md_pagetable(ucmd, mockpt_id, &mock); f4b20bb34c83dc Jason Gunthorpe 2022-11-29 349 if (IS_ERR(hwpt)) f4b20bb34c83dc Jason Gunthorpe 2022-11-29 350 return PTR_ERR(hwpt); f4b20bb34c83dc Jason Gunthorpe 2022-11-29 351 f4b20bb34c83dc Jason Gunthorpe 2022-11-29 352 for (; length; length -= MOCK_IO_PAGE_SIZE) { f4b20bb34c83dc Jason Gunthorpe 2022-11-29 353 struct page *pages[1]; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 354 unsigned long pfn; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 355 long npages; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 356 void *ent; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 357 f4b20bb34c83dc Jason Gunthorpe 2022-11-29 358 npages = get_user_pages_fast((uintptr_t)uptr & PAGE_MASK, 1, 0, f4b20bb34c83dc Jason Gunthorpe 2022-11-29 359 pages); f4b20bb34c83dc Jason Gunthorpe 2022-11-29 360 if (npages < 0) { f4b20bb34c83dc Jason Gunthorpe 2022-11-29 361 rc = npages; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 362 goto out_put; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 363 } f4b20bb34c83dc Jason Gunthorpe 2022-11-29 364 if (WARN_ON(npages != 1)) { f4b20bb34c83dc Jason Gunthorpe 2022-11-29 365 rc = -EFAULT; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 366 goto out_put; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 367 } f4b20bb34c83dc Jason Gunthorpe 2022-11-29 368 pfn = page_to_pfn(pages[0]); f4b20bb34c83dc Jason Gunthorpe 2022-11-29 369 put_page(pages[0]); f4b20bb34c83dc Jason Gunthorpe 2022-11-29 370 f4b20bb34c83dc Jason Gunthorpe 2022-11-29 @371 ent = xa_load(&mock->pfns, iova / MOCK_IO_PAGE_SIZE); f4b20bb34c83dc Jason Gunthorpe 2022-11-29 372 if (!ent || f4b20bb34c83dc Jason Gunthorpe 2022-11-29 373 (xa_to_value(ent) & MOCK_PFN_MASK) * MOCK_IO_PAGE_SIZE != f4b20bb34c83dc Jason Gunthorpe 2022-11-29 374 pfn * PAGE_SIZE + ((uintptr_t)uptr % PAGE_SIZE)) { f4b20bb34c83dc Jason Gunthorpe 2022-11-29 375 rc = -EINVAL; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 376 goto out_put; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 377 } f4b20bb34c83dc Jason Gunthorpe 2022-11-29 378 iova += MOCK_IO_PAGE_SIZE; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 379 uptr += MOCK_IO_PAGE_SIZE; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 380 } f4b20bb34c83dc Jason Gunthorpe 2022-11-29 381 rc = 0; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 382 f4b20bb34c83dc Jason Gunthorpe 2022-11-29 383 out_put: f4b20bb34c83dc Jason Gunthorpe 2022-11-29 384 iommufd_put_object(&hwpt->obj); f4b20bb34c83dc Jason Gunthorpe 2022-11-29 385 return rc; f4b20bb34c83dc Jason Gunthorpe 2022-11-29 386 } f4b20bb34c83dc Jason Gunthorpe 2022-11-29 387 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests