linux/security/keys
ndesaulniers@google.com be24b37e22 KEYS: trusted: fix -Wvarags warning
Fixes the warning reported by Clang:
security/keys/trusted.c:146:17: warning: passing an object that
undergoes default
      argument promotion to 'va_start' has undefined behavior [-Wvarargs]
        va_start(argp, h3);
                       ^
security/keys/trusted.c:126:37: note: parameter of type 'unsigned
char' is declared here
unsigned char *h2, unsigned char h3, ...)
                               ^
Specifically, it seems that both the C90 (4.8.1.1) and C11 (7.16.1.4)
standards explicitly call this out as undefined behavior:

The parameter parmN is the identifier of the rightmost parameter in
the variable parameter list in the function definition (the one just
before the ...). If the parameter parmN is declared with ... or with a
type that is not compatible with the type that results after
application of the default argument promotions, the behavior is
undefined.

Link: https://github.com/ClangBuiltLinux/linux/issues/41
Link: https://www.eskimo.com/~scs/cclass/int/sx11c.html
Suggested-by: David Laight <David.Laight@aculab.com>
Suggested-by: Denis Kenzior <denkenz@gmail.com>
Suggested-by: James Bottomley <jejb@linux.vnet.ibm.com>
Suggested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
2019-04-08 15:58:54 -07:00
..
encrypted-keys encrypted-keys: fix Opt_err/Opt_error = -1 2019-02-04 17:36:01 -05:00
Kconfig security/keys: BIG_KEY requires CONFIG_CRYPTO 2017-10-18 09:12:40 +01:00
Makefile KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2] 2018-10-26 09:30:46 +01:00
big_key.c big key: get rid of stack array allocation 2018-05-11 13:07:45 -07:00
compat.c KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2] 2018-10-26 09:30:46 +01:00
compat_dh.c KEYS: DH: validate __spare field 2017-07-14 11:01:38 +10:00
dh.c Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" 2018-09-25 13:28:58 +02:00
gc.c security: audit and remove any unnecessary uses of module.h 2018-12-12 14:58:51 -08:00
internal.h keys: Fix dependency loop between construction record and auth key 2019-02-15 14:12:09 -08:00
key.c keys: Timestamp new keys 2019-02-15 14:12:09 -08:00
keyctl.c Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-03-07 11:44:01 -08:00
keyctl_pkey.c KEYS: fix parsing invalid pkey info string 2019-01-01 13:13:19 -08:00
keyring.c Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-03-07 11:44:01 -08:00
permission.c security: audit and remove any unnecessary uses of module.h 2018-12-12 14:58:51 -08:00
persistent.c sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h> 2017-03-02 08:42:31 +01:00
proc.c KEYS: always initialize keyring_index_key::desc_len 2019-02-22 10:11:34 -08:00
process_keys.c Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-03-07 11:44:01 -08:00
request_key.c Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-03-07 11:44:01 -08:00
request_key_auth.c KEYS: always initialize keyring_index_key::desc_len 2019-02-22 10:11:34 -08:00
sysctl.c security: Convert use of typedef ctl_table to struct ctl_table 2014-04-15 13:39:58 +10:00
trusted.c KEYS: trusted: fix -Wvarags warning 2019-04-08 15:58:54 -07:00
user_defined.c security: audit and remove any unnecessary uses of module.h 2018-12-12 14:58:51 -08:00