[perf-tools-next:tmp.perf-tools-next 14/20] util/header.c:2549:36: error: format '%d' expects argument of type 'int', but argument 4 has type 'ssize_t' {aka 'long int'}

[perf-tools-next:tmp.perf-tools-next 14/20] util/header.c:2549:36: error: format '%d' expects argument of type 'int', but argument 4 has type 'ssize_t' {aka 'long int'}

[kernel test robot]

:::::: 
:::::: Manual check reason: "low confidence bisect report"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: SeungJu Cheon <suunj1331@gmail.com>
CC: Namhyung Kim <namhyung@kernel.org>
CC: Ian Rogers <irogers@google.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git tmp.perf-tools-next
head:   98fb63998c72ab248ea1e02aa96a8e1f8e6d8a33
commit: b604ccac3472cfb0423842b0dc562304144e2d17 [14/20] perf header: Validate build_id filename length to prevent buffer overflow
:::::: branch date: 49 minutes ago
:::::: commit date: 2 hours ago
config: arm64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260402/202604020316.eOOSUBEU-lkp@intel.com/config)
compiler: aarch64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260402/202604020316.eOOSUBEU-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/r/202604020316.eOOSUBEU-lkp@intel.com/

All errors (new ones prefixed by >>):

   Makefile.config:577: No elfutils/debuginfod.h found, no debuginfo server support, please install libdebuginfod-dev/elfutils-debuginfod-client-devel or equivalent
   Makefile.config:964: No libllvm 13+ found, slower source file resolution, please install llvm-devel/llvm-dev
   Makefile.config:1160: Rust is not found. Test workloads with rust are disabled.
     PERF_VERSION = 7.0.rc4.gb604ccac3472
   In file included from util/header.c:38:
   util/header.c: In function 'perf_header__read_build_ids_abi_quirk':
>> util/header.c:2549:36: error: format '%d' expects argument of type 'int', but argument 4 has type 'ssize_t' {aka 'long int'} [-Werror=format=]
    2549 |                         pr_warning("invalid build_id filename length %d\n", len);
         |                                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   util/debug.h:20:21: note: in definition of macro 'pr_fmt'
      20 | #define pr_fmt(fmt) fmt
         |                     ^~~
   util/header.c:2549:25: note: in expansion of macro 'pr_warning'
    2549 |                         pr_warning("invalid build_id filename length %d\n", len);
         |                         ^~~~~~~~~~
   util/header.c:2549:71: note: format string is defined here
    2549 |                         pr_warning("invalid build_id filename length %d\n", len);
         |                                                                      ~^
         |                                                                       |
         |                                                                       int
         |                                                                      %ld
   util/header.c: In function 'perf_header__read_build_ids':
   util/header.c:2596:36: error: format '%d' expects argument of type 'int', but argument 4 has type 'ssize_t' {aka 'long int'} [-Werror=format=]
    2596 |                         pr_warning("invalid build_id filename length %d\n", len);
         |                                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   util/debug.h:20:21: note: in definition of macro 'pr_fmt'
      20 | #define pr_fmt(fmt) fmt
         |                     ^~~
   util/header.c:2596:25: note: in expansion of macro 'pr_warning'
    2596 |                         pr_warning("invalid build_id filename length %d\n", len);
         |                         ^~~~~~~~~~
   util/header.c:2596:71: note: format string is defined here
    2596 |                         pr_warning("invalid build_id filename length %d\n", len);
         |                                                                      ~^
         |                                                                       |
         |                                                                       int
         |                                                                      %ld
   cc1: all warnings being treated as errors
   make[4]: *** [tools/build/Makefile.build:95: util/header.o] Error 1
   make[4]: *** Waiting for unfinished jobs....
   make[3]: *** [tools/build/Makefile.build:158: util] Error 2
   make[2]: *** [Makefile.perf:797: perf-util-in.o] Error 2
   make[2]: *** Waiting for unfinished jobs....
   make[1]: *** [Makefile.perf:289: sub-make] Error 2

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