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| author | Eric W. Biederman <ebiederm@xmission.com> | 2022-03-09 19:37:07 +0300 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2022-03-09 19:37:07 +0300 |
| commit | f833116ad2c3eabf9c739946170e07825cca67ed (patch) | |
| tree | cb4438b61bd2f4b45238ab8fb11acf5f890676a0 /fs/binfmt_flat.c | |
| parent | 390031c942116d4733310f0684beb8db19885fe6 (diff) | |
| download | linux-f833116ad2c3eabf9c739946170e07825cca67ed.tar.xz | |
coredump: Don't compile flat_core_dump when coredumps are disabled
Recently the kernel test robot reported:
> In file included from include/linux/kernel.h:29,
> from fs/binfmt_flat.c:21:
> fs/binfmt_flat.c: In function 'flat_core_dump':
> >> fs/binfmt_flat.c:121:50: error: invalid use of undefined type 'struct coredump_params'
> 121 | current->comm, current->pid, cprm->siginfo->si_signo);
> | ^~
> include/linux/printk.h:418:33: note: in definition of macro 'printk_index_wrap'
> 418 | _p_func(_fmt, ##__VA_ARGS__); \
> | ^~~~~~~~~~~
> include/linux/printk.h:499:9: note: in expansion of macro 'printk'
> 499 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
> | ^~~~~~
> fs/binfmt_flat.c:120:9: note: in expansion of macro 'pr_warn'
> 120 | pr_warn("Process %s:%d received signr %d and should have core dumped\n",
> | ^~~~~~~
> At top level:
> fs/binfmt_flat.c:118:12: warning: 'flat_core_dump' defined but not used [-Wunused-function]
> 118 | static int flat_core_dump(struct coredump_params *cprm)
> | ^~~~~~~~~~~~~~
The little dinky do nothing function flat_core_dump has always been
compiled unconditionally. With my change to move coredump_params into
coredump.h coredump_params reasonably becomes unavailable when
coredump support is not compiled in. Fix this old issue by simply not
compiling flat_core_dump when coredump support is not supported.
Fixes: a99a3e2efaf1 ("coredump: Move definition of struct coredump_params into coredump.h")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/binfmt_flat.c')
| -rw-r--r-- | fs/binfmt_flat.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 208cdce16de1..626898150011 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -98,7 +98,9 @@ static int load_flat_shared_library(int id, struct lib_info *p); #endif static int load_flat_binary(struct linux_binprm *); +#ifdef CONFIG_COREDUMP static int flat_core_dump(struct coredump_params *cprm); +#endif static struct linux_binfmt flat_format = { .module = THIS_MODULE, @@ -115,12 +117,14 @@ static struct linux_binfmt flat_format = { * Currently only a stub-function. */ +#ifdef CONFIG_COREDUMP static int flat_core_dump(struct coredump_params *cprm) { pr_warn("Process %s:%d received signr %d and should have core dumped\n", current->comm, current->pid, cprm->siginfo->si_signo); return 1; } +#endif /****************************************************************************/ /* |