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Miller'" , 'Dan Carpenter' , 'Jani Nikula' Subject: Re: [PATCH next v2 11/11] minmax: min() and max() don't need to return constant expressions Message-ID: <202402261802.9ShoXRwY-lkp@intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: DD4D2C0013 X-Stat-Signature: n63su5h7owzpx6fn7q7oxgakf5n5sfce X-Rspam-User: X-HE-Tag: 1708945028-306992 X-HE-Meta: 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 je5dQ6Oc hft4aB2CIoMxO7rnYQuL3YmbijmzhC47LOqAv5yMq/I8GFkolldNVFTGovx0H04Ws3oSNhXchaSRt8OZBGFx1S5Ovb2BYsGwfH3E34AYZ7mcFfKsa3tgKTQXwCtC5b04AOPY/g0RIeopDyiHzhVt6mYBnKw2VjvpFjAUKAZY/Q39ifshnASFFsHQhvD6ZavJ3Unj79P88zQnFBRoYF+fQ0bAHxQZd23rhSDcfuvd1rOizEbxla6E/QTaStH9IsuGmxxTQY5bDgNRwnF5EooGgmfkEe6btrWkfx39H6eGIjTmZa5DKzq7E/KkvIbRudtpE7oaAgpY7ZFnZ1tpao+G2VOwYl3KKVNIBftq9m6uJWYqhuxnnMn1t/pRoVrQIlASzCW4rT2V22GawNjGKsZaJ8UrV1Hgl8mPu4SgF/96SXfY2OQHoxCSMAbX5WQmSvSg4EmD5VOxVJisTQLNp4It62MoWxv8PZm1FXsPY2O+DSbQm70Q= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi David, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on linux/master mkl-can-next/testing kdave/for-next akpm-mm/mm-nonmm-unstable linus/master v6.8-rc6] [cannot apply to next-20240223 dtor-input/next dtor-input/for-linus axboe-block/for-next horms-ipvs/master next-20240223] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/David-Laight/minmax-Put-all-the-clamp-definitions-together/20240226-005902 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/a18dcae310f74dcb9c6fc01d5bdc0568%40AcuMS.aculab.com patch subject: [PATCH next v2 11/11] minmax: min() and max() don't need to return constant expressions config: i386-randconfig-011-20240226 (https://download.01.org/0day-ci/archive/20240226/202402261802.9ShoXRwY-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/20240226/202402261802.9ShoXRwY-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202402261802.9ShoXRwY-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/x86/mm/pgtable.c: In function 'pgd_alloc': >> arch/x86/mm/pgtable.c:437:9: warning: ISO C90 forbids variable length array 'pmds' [-Wvla] 437 | pmd_t *pmds[MAX_PREALLOCATED_PMDS]; | ^~~~~ vim +/pmds +437 arch/x86/mm/pgtable.c 1db491f77b6ed0 Fenghua Yu 2015-01-15 432 d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 433 pgd_t *pgd_alloc(struct mm_struct *mm) 1ec1fe73dfb711 Ingo Molnar 2008-03-19 434 { d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 435 pgd_t *pgd; 184d47f0fd3651 Kees Cook 2018-10-08 436 pmd_t *u_pmds[MAX_PREALLOCATED_USER_PMDS]; 184d47f0fd3651 Kees Cook 2018-10-08 @437 pmd_t *pmds[MAX_PREALLOCATED_PMDS]; 1ec1fe73dfb711 Ingo Molnar 2008-03-19 438 1db491f77b6ed0 Fenghua Yu 2015-01-15 439 pgd = _pgd_alloc(); 1ec1fe73dfb711 Ingo Molnar 2008-03-19 440 d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 441 if (pgd == NULL) d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 442 goto out; 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 443 d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 444 mm->pgd = pgd; 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 445 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 446 if (sizeof(pmds) != 0 && 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 447 preallocate_pmds(mm, pmds, PREALLOCATED_PMDS) != 0) d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 448 goto out_free_pgd; d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 449 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 450 if (sizeof(u_pmds) != 0 && 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 451 preallocate_pmds(mm, u_pmds, PREALLOCATED_USER_PMDS) != 0) d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 452 goto out_free_pmds; d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 453 f59dbe9ca6707e Joerg Roedel 2018-07-18 454 if (paravirt_pgd_alloc(mm) != 0) f59dbe9ca6707e Joerg Roedel 2018-07-18 455 goto out_free_user_pmds; f59dbe9ca6707e Joerg Roedel 2018-07-18 456 d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 457 /* d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 458 * Make sure that pre-populating the pmds is atomic with d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 459 * respect to anything walking the pgd_list, so that they d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 460 * never see a partially populated pgd. d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 461 */ a79e53d85683c6 Andrea Arcangeli 2011-02-16 462 spin_lock(&pgd_lock); 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 463 617d34d9e5d832 Jeremy Fitzhardinge 2010-09-21 464 pgd_ctor(mm, pgd); 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 465 if (sizeof(pmds) != 0) d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 466 pgd_prepopulate_pmd(mm, pgd, pmds); 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 467 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 468 if (sizeof(u_pmds) != 0) f59dbe9ca6707e Joerg Roedel 2018-07-18 469 pgd_prepopulate_user_pmd(mm, pgd, u_pmds); 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 470 a79e53d85683c6 Andrea Arcangeli 2011-02-16 471 spin_unlock(&pgd_lock); 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 472 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 473 return pgd; d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 474 f59dbe9ca6707e Joerg Roedel 2018-07-18 475 out_free_user_pmds: 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 476 if (sizeof(u_pmds) != 0) f59dbe9ca6707e Joerg Roedel 2018-07-18 477 free_pmds(mm, u_pmds, PREALLOCATED_USER_PMDS); d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 478 out_free_pmds: 25226df4b9be7f Gustavo A. R. Silva 2022-09-21 479 if (sizeof(pmds) != 0) f59dbe9ca6707e Joerg Roedel 2018-07-18 480 free_pmds(mm, pmds, PREALLOCATED_PMDS); d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 481 out_free_pgd: 1db491f77b6ed0 Fenghua Yu 2015-01-15 482 _pgd_free(pgd); d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 483 out: d8d5900ef8afc5 Jeremy Fitzhardinge 2008-06-25 484 return NULL; 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 485 } 4f76cd382213b2 Jeremy Fitzhardinge 2008-03-17 486 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki