* Re: [PATCH v2] rust: bug: Add bug macro
[not found] <20260709000103.2912159-1-tomo@aliasing.net>
@ 2026-07-09 7:16 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-07-09 7:16 UTC (permalink / raw)
To: FUJITA Tomonori, ojeda
Cc: llvm, oe-kbuild-all, gregkh, a.hindborg, acourbot, aliceryhl,
bjorn3_gh, boqun, dakr, daniel.almeida, gary, lossin, tamird,
tmgross, work, rust-for-linux, FUJITA Tomonori
Hi FUJITA,
kernel test robot noticed the following build errors:
[auto build test ERROR on dc59e4fea9d83f03bad6bddf3fa2e52491777482]
url: https://github.com/intel-lab-lkp/linux/commits/FUJITA-Tomonori/rust-bug-Add-bug-macro/20260709-080347
base: dc59e4fea9d83f03bad6bddf3fa2e52491777482
patch link: https://lore.kernel.org/r/20260709000103.2912159-1-tomo%40aliasing.net
patch subject: [PATCH v2] rust: bug: Add bug macro
config: um-allmodconfig (https://download.01.org/0day-ci/archive/20260709/202607091512.wQmfg8U1-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260709/202607091512.wQmfg8U1-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202607091512.wQmfg8U1-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from kernel/sched/rq-offsets.c:5:
In file included from kernel/sched/sched.h:28:
In file included from include/linux/cgroup_api.h:1:
In file included from include/linux/cgroup.h:27:
In file included from include/linux/kernel_stat.h:8:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:24:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
1209 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
| ~~~~~~~~~~ ^
1 warning generated.
In file included from rust/helpers/helpers.c:49:
In file included from rust/helpers/blk.c:3:
In file included from include/linux/blk-mq.h:5:
In file included from include/linux/blkdev.h:9:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:24:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:12:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
1209 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
| ~~~~~~~~~~ ^
clang diag: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
clang diag: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
clang diag: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
1 warning generated.
>> error[E0599]: no method named `as_char_ptr` found for reference `&ffi::CStr` in the current scope
--> rust/kernel/bug.rs:94:53
|
94 | $crate::c_str!(::core::file!()).as_char_ptr(),
| ^^^^^^^^^^^
|
::: rust/kernel/lib.rs:220:5
|
220 | crate::bug!();
| ------------- in this macro invocation
|
= help: items from traits can only be used if the trait is in scope
= note: this error originates in the macro `$crate::warn_flags` which comes from the expansion of the macro `crate::bug` (in Nightly builds, run with -Z macro-backtrace for more info)
help: trait `CStrExt` which provides `as_char_ptr` is implemented but not in scope; perhaps you want to import it
--> rust/kernel/lib.rs:35:1
|
35 + use crate::str::CStrExt;
|
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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