tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1c41041124bd14dd6610da256a3da4e5b74ce6b1 commit: 5641f19bdfc4193f1c2d5a829896c25dd5c0ec3d drm/xen-front: Use Xen common shared buffer implementation date: 4 years, 11 months ago config: x86_64-randconfig-r054-20230808 (https://download.01.org/0day-ci/archive/20231106/202311060203.yQrpPZhm-lkp@xxxxxxxxx/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/20231106/202311060203.yQrpPZhm-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311060203.yQrpPZhm-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/xen/xen-front-pgdir-shbuf.c:34: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * This structure represents the structure of a shared page drivers/xen/xen-front-pgdir-shbuf.c:45: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Shared buffer ops which are differently implemented drivers/xen/xen-front-pgdir-shbuf.c:73: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Get granted reference to the very first page of the drivers/xen/xen-front-pgdir-shbuf.c:93: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Map granted references of the shared buffer. drivers/xen/xen-front-pgdir-shbuf.c:114: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Unmap granted references of the shared buffer. drivers/xen/xen-front-pgdir-shbuf.c:135: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Free all the resources of the shared buffer. drivers/xen/xen-front-pgdir-shbuf.c:163: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Get the number of pages the page directory consumes itself. drivers/xen/xen-front-pgdir-shbuf.c:173: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Calculate the number of grant references needed to share the buffer drivers/xen/xen-front-pgdir-shbuf.c:185: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Calculate the number of grant references needed to share the buffer drivers/xen/xen-front-pgdir-shbuf.c:203: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Unmap the buffer previously mapped with grant references drivers/xen/xen-front-pgdir-shbuf.c:251: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Map the buffer with grant references provided by the backend. drivers/xen/xen-front-pgdir-shbuf.c:326: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Fill page directory with grant references to the pages of the drivers/xen/xen-front-pgdir-shbuf.c:356: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Fill page directory with grant references to the pages of the drivers/xen/xen-front-pgdir-shbuf.c:395: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Grant references to the frontend's buffer pages. drivers/xen/xen-front-pgdir-shbuf.c:424: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Grant all the references needed to share the buffer. drivers/xen/xen-front-pgdir-shbuf.c:472: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Allocate all required structures to mange shared buffer. drivers/xen/xen-front-pgdir-shbuf.c:512: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Allocate a new instance of a shared buffer. vim +34 drivers/xen/xen-front-pgdir-shbuf.c b3383974fee272 Oleksandr Andrushchenko 2018-11-30 32 b3383974fee272 Oleksandr Andrushchenko 2018-11-30 33 /** b3383974fee272 Oleksandr Andrushchenko 2018-11-30 @34 * This structure represents the structure of a shared page b3383974fee272 Oleksandr Andrushchenko 2018-11-30 35 * that contains grant references to the pages of the shared b3383974fee272 Oleksandr Andrushchenko 2018-11-30 36 * buffer. This structure is common to many Xen para-virtualized b3383974fee272 Oleksandr Andrushchenko 2018-11-30 37 * protocols at include/xen/interface/io/ b3383974fee272 Oleksandr Andrushchenko 2018-11-30 38 */ b3383974fee272 Oleksandr Andrushchenko 2018-11-30 39 struct xen_page_directory { b3383974fee272 Oleksandr Andrushchenko 2018-11-30 40 grant_ref_t gref_dir_next_page; b3383974fee272 Oleksandr Andrushchenko 2018-11-30 41 grant_ref_t gref[1]; /* Variable length */ b3383974fee272 Oleksandr Andrushchenko 2018-11-30 42 }; b3383974fee272 Oleksandr Andrushchenko 2018-11-30 43 :::::: The code at line 34 was first introduced by commit :::::: b3383974fee272ad0d444a2d083f456879447cd8 xen: Introduce shared buffer helpers for page directory... :::::: TO: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx> :::::: CC: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
