CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Christoph Hellwig <h...@lst.de> CC: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 09688c0166e76ce2fb85e86b9d99be8b0084cdf9 commit: cbce99527ca7c4e98db9890651d5e9dfc2fb89ac xen-swiotlb: remove xen_io_tlb_start and xen_io_tlb_nslabs date: 12 months ago :::::: branch date: 24 hours ago :::::: commit date: 12 months ago config: x86_64-randconfig-c007-20220307 (https://download.01.org/0day-ci/archive/20220315/202203150407.kzsq020z-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbce99527ca7c4e98db9890651d5e9dfc2fb89ac git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout cbce99527ca7c4e98db9890651d5e9dfc2fb89ac # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> clang-analyzer warnings: (new ones prefixed by >>) ^~~~~~~~~~~~~~~~~~~~~~ drivers/misc/lis3lv02d/lis3lv02d.c:315:2: note: Taking true branch if (lis3->whoami == WAI_8B) { ^ drivers/misc/lis3lv02d/lis3lv02d.c:318:3: note: 3rd function call argument is an uninitialized value lis3->write(lis3, CTRL_REG3, ctrl_reg_data); ^ ~~~~~~~~~~~~~ drivers/misc/lis3lv02d/lis3lv02d.c:798:9: warning: 4th function call argument is an uninitialized value [clang-analyzer-core.CallAndMessage] return sprintf(buf, "%s %d %d %d\n", res, ^ drivers/misc/lis3lv02d/lis3lv02d.c:786:10: note: Calling 'lis3lv02d_selftest' switch (lis3lv02d_selftest(lis3, values)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/misc/lis3lv02d/lis3lv02d.c:268:6: note: Assuming field 'whoami' is not equal to WAI_8B if (lis3->whoami == WAI_8B) { ^~~~~~~~~~~~~~~~~~~~~~ drivers/misc/lis3lv02d/lis3lv02d.c:268:2: note: Taking false branch if (lis3->whoami == WAI_8B) { ^ drivers/misc/lis3lv02d/lis3lv02d.c:281:7: note: Assuming field 'whoami' is equal to WAI_3DC if ((lis3->whoami == WAI_3DC) || (lis3->whoami == WAI_3DLH)) { ^~~~~~~~~~~~~~~~~~~~~~~ drivers/misc/lis3lv02d/lis3lv02d.c:281:32: note: Left side of '||' is true if ((lis3->whoami == WAI_3DC) || (lis3->whoami == WAI_3DLH)) { ^ drivers/misc/lis3lv02d/lis3lv02d.c:295:6: note: 'ret' is -6 if (ret) ^~~ drivers/misc/lis3lv02d/lis3lv02d.c:295:2: note: Taking true branch if (ret) ^ drivers/misc/lis3lv02d/lis3lv02d.c:296:3: note: Control jumps to line 348 goto fail; ^ drivers/misc/lis3lv02d/lis3lv02d.c:349:2: note: Returning without writing to '*results' return ret; ^ drivers/misc/lis3lv02d/lis3lv02d.c:786:10: note: Returning from 'lis3lv02d_selftest' switch (lis3lv02d_selftest(lis3, values)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/misc/lis3lv02d/lis3lv02d.c:786:2: note: Control jumps to the 'default' case at line 794 switch (lis3lv02d_selftest(lis3, values)) { ^ drivers/misc/lis3lv02d/lis3lv02d.c:796:3: note: Execution continues on line 798 break; ^ drivers/misc/lis3lv02d/lis3lv02d.c:798:9: note: 4th function call argument is an uninitialized value return sprintf(buf, "%s %d %d %d\n", res, ^ Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. arch/x86/include/asm/xen/hypercall.h:364:9: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] return _hypercall2(int, xen_version, cmd, arg); ^ arch/x86/include/asm/xen/hypercall.h:169:2: note: expanded from macro '_hypercall2' __HYPERCALL_DECLS; \ ^ arch/x86/include/asm/xen/hypercall.h:113:2: note: expanded from macro '__HYPERCALL_DECLS' register unsigned long __arg1 asm(__HYPERCALL_ARG1REG) = __arg1; \ ^ drivers/xen/sys-hypervisor.c:361:8: note: Calling 'HYPERVISOR_xen_version' ret = HYPERVISOR_xen_version(XENVER_build_id, NULL); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/xen/hypercall.h:364:9: note: Assigned value is garbage or undefined return _hypercall2(int, xen_version, cmd, arg); ^ arch/x86/include/asm/xen/hypercall.h:169:2: note: expanded from macro '_hypercall2' __HYPERCALL_DECLS; \ ^~~~~~~~~~~~~~~~~ arch/x86/include/asm/xen/hypercall.h:113:2: note: expanded from macro '__HYPERCALL_DECLS' register unsigned long __arg1 asm(__HYPERCALL_ARG1REG) = __arg1; \ ^ ~~~~~~ arch/x86/include/asm/xen/hypercall.h:435:9: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] return _hypercall2(int, xenpmu_op, op, arg); ^ arch/x86/include/asm/xen/hypercall.h:169:2: note: expanded from macro '_hypercall2' __HYPERCALL_DECLS; \ ^ arch/x86/include/asm/xen/hypercall.h:113:2: note: expanded from macro '__HYPERCALL_DECLS' register unsigned long __arg1 asm(__HYPERCALL_ARG1REG) = __arg1; \ ^ drivers/xen/sys-hypervisor.c:493:8: note: Calling 'HYPERVISOR_xenpmu_op' ret = HYPERVISOR_xenpmu_op(XENPMU_feature_get, &xp); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/xen/hypercall.h:435:9: note: Assigned value is garbage or undefined return _hypercall2(int, xenpmu_op, op, arg); ^ arch/x86/include/asm/xen/hypercall.h:169:2: note: expanded from macro '_hypercall2' __HYPERCALL_DECLS; \ ^~~~~~~~~~~~~~~~~ arch/x86/include/asm/xen/hypercall.h:113:2: note: expanded from macro '__HYPERCALL_DECLS' register unsigned long __arg1 asm(__HYPERCALL_ARG1REG) = __arg1; \ ^ ~~~~~~ Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (3 in non-user code, 2 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. >> drivers/xen/swiotlb-xen.c:206:6: warning: Branch condition evaluates to a >> garbage value [clang-analyzer-core.uninitialized.Branch] if (!start) { ^~~~~~ drivers/xen/swiotlb-xen.c:165:2: note: 'start' declared without an initial value char *start; ^~~~~~~~~~~ drivers/xen/swiotlb-xen.c:170:6: note: Assuming 'nslabs' is not equal to 0 if (!nslabs) ^~~~~~~ drivers/xen/swiotlb-xen.c:170:2: note: Taking false branch if (!nslabs) ^ drivers/xen/swiotlb-xen.c:178:6: note: Assuming 'io_tlb_start' is equal to 0 if (io_tlb_start != 0) ^~~~~~~~~~~~~~~~~ drivers/xen/swiotlb-xen.c:178:2: note: Taking false branch if (io_tlb_start != 0) ^ drivers/xen/swiotlb-xen.c:184:6: note: Assuming 'early' is false if (early) { ^~~~~ drivers/xen/swiotlb-xen.c:184:2: note: Taking false branch if (early) { ^ drivers/xen/swiotlb-xen.c:193:10: note: Assuming the condition is false while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/xen/swiotlb-xen.c:193:3: note: Loop condition is false. Execution continues on line 199 while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) { ^ drivers/xen/swiotlb-xen.c:199:7: note: Assuming the condition is false if (order != get_order(bytes)) { ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/xen/swiotlb-xen.c:199:3: note: Taking false branch if (order != get_order(bytes)) { ^ drivers/xen/swiotlb-xen.c:206:6: note: Branch condition evaluates to a garbage value if (!start) { ^~~~~~ include/linux/dma-direct.h:81:6: warning: Access to field 'dma_range_map' results in a dereference of a null pointer (loaded from variable 'dev') [clang-analyzer-core.NullDereference] if (dev->dma_range_map) ^ drivers/xen/swiotlb-xen.c:319:17: note: 32 is not equal to 64 u64 dma_mask = DMA_BIT_MASK(32); ^ include/linux/dma-mapping.h:76:27: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^~~ drivers/xen/swiotlb-xen.c:319:17: note: '?' condition is false u64 dma_mask = DMA_BIT_MASK(32); ^ include/linux/dma-mapping.h:76:26: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ drivers/xen/swiotlb-xen.c:322:6: note: Assuming 'hwdev' is null if (hwdev && hwdev->coherent_dma_mask) ^~~~~ drivers/xen/swiotlb-xen.c:322:12: note: Left side of '&&' is false if (hwdev && hwdev->coherent_dma_mask) ^ drivers/xen/swiotlb-xen.c:327:25: note: Passing null pointer value via 1st parameter 'dev' phys = xen_dma_to_phys(hwdev, dev_addr); ^~~~~ drivers/xen/swiotlb-xen.c:327:9: note: Calling 'xen_dma_to_phys' phys = xen_dma_to_phys(hwdev, dev_addr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/xen/swiotlb-xen.c:75:42: note: Passing null pointer value via 1st parameter 'dev' return xen_bus_to_phys(dev, dma_to_phys(dev, dma_addr)); ^~~ drivers/xen/swiotlb-xen.c:75:30: note: Calling 'dma_to_phys' return xen_bus_to_phys(dev, dma_to_phys(dev, dma_addr)); ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dma-direct.h:81:6: note: Access to field 'dma_range_map' results in a dereference of a null pointer (loaded from variable 'dev') if (dev->dma_range_map) ^~~ Suppressed 5 warnings (3 in non-user code, 2 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. drivers/pinctrl/pinctrl-single.c:1410:3: warning: Value stored to 'mask' is never read [clang-analyzer-deadcode.DeadStores] mask = pcs->read(pcswi->reg); ^ ~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-single.c:1410:3: note: Value stored to 'mask' is never read mask = pcs->read(pcswi->reg); ^ ~~~~~~~~~~~~~~~~~~~~~ Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. vim +206 drivers/xen/swiotlb-xen.c 4035b43da6daa51 Christoph Hellwig 2021-03-01 158 b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 159 int __ref xen_swiotlb_init(int verbose, bool early) b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 160 { b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 161 unsigned long bytes, order; f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 162 int rc = -ENOMEM; 5bab7864b1167f9 Konrad Rzeszutek Wilk 2012-08-23 163 enum xen_swiotlb_err m_ret = XEN_SWIOTLB_UNKNOWN; f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 164 unsigned int repeat = 3; cbce99527ca7c4e Christoph Hellwig 2021-03-01 165 char *start; cbce99527ca7c4e Christoph Hellwig 2021-03-01 166 unsigned long nslabs; b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 167 cbce99527ca7c4e Christoph Hellwig 2021-03-01 168 nslabs = swiotlb_nr_tbl(); f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 169 retry: cbce99527ca7c4e Christoph Hellwig 2021-03-01 170 if (!nslabs) cbce99527ca7c4e Christoph Hellwig 2021-03-01 171 nslabs = DEFAULT_NSLABS; cbce99527ca7c4e Christoph Hellwig 2021-03-01 172 bytes = nslabs << IO_TLB_SHIFT; 4035b43da6daa51 Christoph Hellwig 2021-03-01 173 order = get_order(bytes); 4e7372e0dc5d7d2 Stefano Stabellini 2019-05-28 174 4e7372e0dc5d7d2 Stefano Stabellini 2019-05-28 175 /* 4e7372e0dc5d7d2 Stefano Stabellini 2019-05-28 176 * IO TLB memory already allocated. Just use it. 4e7372e0dc5d7d2 Stefano Stabellini 2019-05-28 177 */ cbce99527ca7c4e Christoph Hellwig 2021-03-01 178 if (io_tlb_start != 0) 4e7372e0dc5d7d2 Stefano Stabellini 2019-05-28 179 goto end; 4e7372e0dc5d7d2 Stefano Stabellini 2019-05-28 180 b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 181 /* b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 182 * Get IO TLB memory from any location. b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 183 */ 8a7f97b902f4fb0 Mike Rapoport 2019-03-11 184 if (early) { cbce99527ca7c4e Christoph Hellwig 2021-03-01 185 start = memblock_alloc(PAGE_ALIGN(bytes), 15c3c114ed144e5 Mike Rapoport 2018-10-30 186 PAGE_SIZE); cbce99527ca7c4e Christoph Hellwig 2021-03-01 187 if (!start) 8a7f97b902f4fb0 Mike Rapoport 2019-03-11 188 panic("%s: Failed to allocate %lu bytes align=0x%lx\n", 8a7f97b902f4fb0 Mike Rapoport 2019-03-11 189 __func__, PAGE_ALIGN(bytes), PAGE_SIZE); 8a7f97b902f4fb0 Mike Rapoport 2019-03-11 190 } else { b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 191 #define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT)) b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 192 #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT) b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 193 while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) { cbce99527ca7c4e Christoph Hellwig 2021-03-01 194 start = (void *)xen_get_swiotlb_free_pages(order); cbce99527ca7c4e Christoph Hellwig 2021-03-01 195 if (start) b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 196 break; b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 197 order--; b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 198 } b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 199 if (order != get_order(bytes)) { 283c0972d53769e Joe Perches 2013-06-28 200 pr_warn("Warning: only able to allocate %ld MB for software IO TLB\n", 283c0972d53769e Joe Perches 2013-06-28 201 (PAGE_SIZE << order) >> 20); cbce99527ca7c4e Christoph Hellwig 2021-03-01 202 nslabs = SLABS_PER_PAGE << order; cbce99527ca7c4e Christoph Hellwig 2021-03-01 203 bytes = nslabs << IO_TLB_SHIFT; b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 204 } b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 205 } cbce99527ca7c4e Christoph Hellwig 2021-03-01 @206 if (!start) { 5bab7864b1167f9 Konrad Rzeszutek Wilk 2012-08-23 207 m_ret = XEN_SWIOTLB_ENOMEM; f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 208 goto error; f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 209 } b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 210 /* b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 211 * And replace that memory with pages under 4GB. b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 212 */ cbce99527ca7c4e Christoph Hellwig 2021-03-01 213 rc = xen_swiotlb_fixup(start, b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 214 bytes, cbce99527ca7c4e Christoph Hellwig 2021-03-01 215 nslabs); f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 216 if (rc) { b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 217 if (early) cbce99527ca7c4e Christoph Hellwig 2021-03-01 218 memblock_free(__pa(start), 2013288f7238878 Mike Rapoport 2018-10-30 219 PAGE_ALIGN(bytes)); b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 220 else { cbce99527ca7c4e Christoph Hellwig 2021-03-01 221 free_pages((unsigned long)start, order); cbce99527ca7c4e Christoph Hellwig 2021-03-01 222 start = NULL; b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 223 } 5bab7864b1167f9 Konrad Rzeszutek Wilk 2012-08-23 224 m_ret = XEN_SWIOTLB_EFIXUP; b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 225 goto error; f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 226 } c468bdee28a1cb6 Konrad Rzeszutek Wilk 2012-09-17 227 if (early) { cbce99527ca7c4e Christoph Hellwig 2021-03-01 228 if (swiotlb_init_with_tbl(start, nslabs, ac2cbab21f318e1 Yinghai Lu 2013-01-24 229 verbose)) ac2cbab21f318e1 Yinghai Lu 2013-01-24 230 panic("Cannot allocate SWIOTLB buffer"); c468bdee28a1cb6 Konrad Rzeszutek Wilk 2012-09-17 231 rc = 0; c468bdee28a1cb6 Konrad Rzeszutek Wilk 2012-09-17 232 } else cbce99527ca7c4e Christoph Hellwig 2021-03-01 233 rc = swiotlb_late_init_with_tbl(start, nslabs); 7453c549f5f6485 Konrad Rzeszutek Wilk 2016-12-20 234 4e7372e0dc5d7d2 Stefano Stabellini 2019-05-28 235 end: 7453c549f5f6485 Konrad Rzeszutek Wilk 2016-12-20 236 if (!rc) 7453c549f5f6485 Konrad Rzeszutek Wilk 2016-12-20 237 swiotlb_set_max_segment(PAGE_SIZE); 7453c549f5f6485 Konrad Rzeszutek Wilk 2016-12-20 238 b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 239 return rc; b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 240 error: f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 241 if (repeat--) { cbce99527ca7c4e Christoph Hellwig 2021-03-01 242 nslabs = max(1024UL, /* Min is 2MB */ cbce99527ca7c4e Christoph Hellwig 2021-03-01 243 (nslabs >> 1)); 283c0972d53769e Joe Perches 2013-06-28 244 pr_info("Lowering to %luMB\n", cbce99527ca7c4e Christoph Hellwig 2021-03-01 245 (nslabs << IO_TLB_SHIFT) >> 20); f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 246 goto retry; f4b2f07b2ed9b46 Konrad Rzeszutek Wilk 2011-07-22 247 } 283c0972d53769e Joe Perches 2013-06-28 248 pr_err("%s (rc:%d)\n", xen_swiotlb_error(m_ret), rc); b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 249 if (early) 5bab7864b1167f9 Konrad Rzeszutek Wilk 2012-08-23 250 panic("%s (rc:%d)", xen_swiotlb_error(m_ret), rc); b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 251 else cbce99527ca7c4e Christoph Hellwig 2021-03-01 252 free_pages((unsigned long)start, order); b82776005369899 Konrad Rzeszutek Wilk 2012-08-23 253 return rc; b097186fd29d5bc Konrad Rzeszutek Wilk 2010-05-11 254 } dceb1a6819ab2c8 Christoph Hellwig 2017-05-21 255 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
