From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) (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 5EA891C04 for ; Thu, 23 Mar 2023 05:54:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679550854; x=1711086854; h=date:from:to:cc:subject:message-id:mime-version; bh=B0AK8699+qv871rXgRu4JwIfnTHk1/hncKETPaoZCTk=; b=JWBaFThgHJRfjCxm4YFh12QF1oMKKIs+DLLgvEkNiXQC+k7V6pUpNZRy W0x7GZtfY/1ifavKt1L1VXrMkCOTnS71QB+3eg/RZxrZll70WvrR75Yg/ 7D0HYwnb9wTaBe/9wcGkROgyoEqyaZw7EhWIGcm2pOeMkYMTmyBLhXB/G +geZ2kwauMMkt/C1Aoc7y0iZ9U38VmF2mmNmaCj83sggf+GYLblmwQXY1 MIW7wwez/xh3Xs738++W6X5ME+NM0OLUUcY0Evi2JJlONSjEpfzObFZMN pJhv679PxYMnpipCg/t9WludnjzwjlMhAZ5b5OoBrCIfX0X+kzucXFvkl Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10657"; a="319055110" X-IronPort-AV: E=Sophos;i="5.98,283,1673942400"; d="scan'208";a="319055110" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2023 22:54:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10657"; a="806127072" X-IronPort-AV: E=Sophos;i="5.98,283,1673942400"; d="scan'208";a="806127072" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by orsmga004.jf.intel.com with ESMTP; 22 Mar 2023 22:54:12 -0700 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pfDtr-000E1A-0m; Thu, 23 Mar 2023 05:54:11 +0000 Date: Thu, 23 Mar 2023 13:53:25 +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: <202303231330.lOV3AUTd-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: fff5a5e7f528b2ed2c335991399a766c2cf01103 commit: f4b20bb34c83dceade5470288f48f94ce3598ada iommufd: Add kernel support for testing iommufd date: 4 months ago :::::: branch date: 9 hours ago :::::: commit date: 4 months ago config: s390-randconfig-m031-20230321 (https://download.01.org/0day-ci/archive/20230323/202303231330.lOV3AUTd-lkp@intel.com/config) compiler: s390-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/202303231330.lOV3AUTd-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