tree: git://anongit.freedesktop.org/drm-intel drm-intel-nightly head: ca1c03136b168816ac65c5945776908e464fca6b commit: 45b186f111f1623b257d183920cd4aab16a1acd5 [922/930] drm: Constify the drm_mm API config: x86_64-randconfig-x008-201650 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 45b186f111f1623b257d183920cd4aab16a1acd5 # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): In file included from include/linux/mutex.h:14:0, from include/linux/seq_file.h:7, from drivers/gpu/drm/i915/i915_gem_gtt.c:26: drivers/gpu/drm/i915/i915_gem_gtt.c: In function 'i915_gtt_color_adjust': >> include/linux/list.h:385:29: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] struct list_head *head__ = (ptr); \ ^ drivers/gpu/drm/i915/i915_gem_gtt.c:2732:9: note: in expansion of macro 'list_first_entry_or_null' node = list_first_entry_or_null(&node->node_list, ^~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/const +385 include/linux/list.h 3943f42c Andrey Utkin 2014-11-14 369 * @member: the name of the list_head within the struct. 93be3c2e Oleg Nesterov 2013-11-12 370 * 93be3c2e Oleg Nesterov 2013-11-12 371 * Note, that list is expected to be not empty. 93be3c2e Oleg Nesterov 2013-11-12 372 */ 93be3c2e Oleg Nesterov 2013-11-12 373 #define list_last_entry(ptr, type, member) \ 93be3c2e Oleg Nesterov 2013-11-12 374 list_entry((ptr)->prev, type, member) 93be3c2e Oleg Nesterov 2013-11-12 375 93be3c2e Oleg Nesterov 2013-11-12 376 /** 6d7581e6 Jiri Pirko 2013-05-29 377 * list_first_entry_or_null - get the first element from a list 6d7581e6 Jiri Pirko 2013-05-29 378 * @ptr: the list head to take the element from. 6d7581e6 Jiri Pirko 2013-05-29 379 * @type: the type of the struct this is embedded in. 3943f42c Andrey Utkin 2014-11-14 380 * @member: the name of the list_head within the struct. 6d7581e6 Jiri Pirko 2013-05-29 381 * 6d7581e6 Jiri Pirko 2013-05-29 382 * Note that if the list is empty, it returns NULL. 6d7581e6 Jiri Pirko 2013-05-29 383 */ 12adfd88 Chris Wilson 2016-07-23 384 #define list_first_entry_or_null(ptr, type, member) ({ \ 12adfd88 Chris Wilson 2016-07-23 @385 struct list_head *head__ = (ptr); \ 12adfd88 Chris Wilson 2016-07-23 386 struct list_head *pos__ = READ_ONCE(head__->next); \ 12adfd88 Chris Wilson 2016-07-23 387 pos__ != head__ ? list_entry(pos__, type, member) : NULL; \ 12adfd88 Chris Wilson 2016-07-23 388 }) 6d7581e6 Jiri Pirko 2013-05-29 389 6d7581e6 Jiri Pirko 2013-05-29 390 /** 008208c6 Oleg Nesterov 2013-11-12 391 * list_next_entry - get the next element in list 008208c6 Oleg Nesterov 2013-11-12 392 * @pos: the type * to cursor 3943f42c Andrey Utkin 2014-11-14 393 * @member: the name of the list_head within the struct. :::::: The code at line 385 was first introduced by commit :::::: 12adfd882c5f37548acaba4f043a158b3c54468b list: Expand list_first_entry_or_null() :::::: TO: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> :::::: CC: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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