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init/main.c: return 1 from handled __setup() functions

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[ Upstream commit f9a40b0890 ]

initcall_blacklist() should return 1 to indicate that it handled its
cmdline arguments.

set_debug_rodata() should return 1 to indicate that it handled its
cmdline arguments.  Print a warning if the option string is invalid.

This prevents these strings from being added to the 'init' program's
environment as they are not init arguments/parameters.

Link: https://lkml.kernel.org/r/20220221050901.23985-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Randy Dunlap
2022-03-23 16:06:14 -07:00
committed by Greg Kroah-Hartman
parent f442978612
commit 8d9efd4434
1 changed files with 4 additions and 2 deletions
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6
init/main.c
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@@ -1104,7 +1104,7 @@ static int __init initcall_blacklist(char *str)
}
} while (str_entry);
return 0;
return 1;
}
static bool __init_or_module initcall_blacklisted(initcall_t fn)
@@ -1367,7 +1367,9 @@ static noinline void __init kernel_init_freeable(void);
bool rodata_enabled __ro_after_init = true;
static int __init set_debug_rodata(char *str)
{
return strtobool(str, &rodata_enabled);
if (strtobool(str, &rodata_enabled))
pr_warn("Invalid option string for rodata: '%s'\n", str);
return 1;
}
__setup("rodata=", set_debug_rodata);
#endif