On 1/24/19 9:13 PM, Casey Schaufler wrote: > On 1/24/2019 6:56 PM, Gustavo A. R. Silva wrote: >> In preparation to enabling -Wimplicit-fallthrough, mark switch >> cases where we are expecting to fall through. >> >> This patch fixes the following warnings: >> >> security/integrity/ima/ima_appraise.c:116:26: warning: this statement may fall through [-Wimplicit-fallthrough=] >> security/integrity/ima/ima_template_lib.c:85:10: warning: this statement may fall through [-Wimplicit-fallthrough=] >> security/integrity/ima/ima_policy.c:940:18: warning: this statement may fall through [-Wimplicit-fallthrough=] >> security/integrity/ima/ima_policy.c:943:7: warning: this statement may fall through [-Wimplicit-fallthrough=] >> security/integrity/ima/ima_policy.c:972:21: warning: this statement may fall through [-Wimplicit-fallthrough=] >> security/integrity/ima/ima_policy.c:974:7: warning: this statement may fall through [-Wimplicit-fallthrough=] >> security/smack/smack_lsm.c:3391:9: warning: this statement may fall through [-Wimplicit-fallthrough=] >> security/apparmor/domain.c:569:6: warning: this statement may fall through [-Wimplicit-fallthrough=] >> >> Warning level 3 was used: -Wimplicit-fallthrough=3 >> >> This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. >> >> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx> > > Acked-by: Casey Schaufler <casey@xxxxxxxxxxxxxxxx> > > Ug. It can't be part of a greater comment? Grumble. > Not like the one in this case. It can be part of a one line comment like this: /* fall through - ... */ and it has to be placed at the bottom of the case. I know... I'd be great if this can be improved. >> --- >> security/apparmor/domain.c | 2 +- >> security/integrity/ima/ima_appraise.c | 1 + >> security/integrity/ima/ima_policy.c | 4 ++++ >> security/integrity/ima/ima_template_lib.c | 1 + >> security/smack/smack_lsm.c | 3 +-- >> 5 files changed, 8 insertions(+), 3 deletions(-) >> >> diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c >> index 726910bba84b..c7c619578095 100644 >> --- a/security/apparmor/domain.c >> +++ b/security/apparmor/domain.c >> @@ -572,7 +572,7 @@ static struct aa_label *x_to_label(struct aa_profile *profile, >> stack = NULL; >> break; >> } >> - /* fall through to X_NAME */ >> + /* fall through - to X_NAME */ >> case AA_X_NAME: >> if (xindex & AA_X_CHILD) >> /* released by caller */ >> diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c >> index a2baa85ea2f5..57daf30fb7d4 100644 >> --- a/security/integrity/ima/ima_appraise.c >> +++ b/security/integrity/ima/ima_appraise.c >> @@ -114,6 +114,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint, >> break; >> case CREDS_CHECK: >> iint->ima_creds_status = status; >> + /* fall through */ >> case FILE_CHECK: >> case POST_SETATTR: >> iint->ima_file_status = status; >> diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c >> index 8bc8a1c8cb3f..122797023bdb 100644 >> --- a/security/integrity/ima/ima_policy.c >> +++ b/security/integrity/ima/ima_policy.c >> @@ -938,10 +938,12 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) >> case Opt_uid_gt: >> case Opt_euid_gt: >> entry->uid_op = &uid_gt; >> + /* fall through */ >> case Opt_uid_lt: >> case Opt_euid_lt: >> if ((token == Opt_uid_lt) || (token == Opt_euid_lt)) >> entry->uid_op = &uid_lt; >> + /* fall through */ >> case Opt_uid_eq: >> case Opt_euid_eq: >> uid_token = (token == Opt_uid_eq) || >> @@ -970,9 +972,11 @@ static int ima_parse_rule(char *rule, struct ima_rule_entry *entry) >> break; >> case Opt_fowner_gt: >> entry->fowner_op = &uid_gt; >> + /* fall through */ >> case Opt_fowner_lt: >> if (token == Opt_fowner_lt) >> entry->fowner_op = &uid_lt; >> + /* fall through */ >> case Opt_fowner_eq: >> ima_log_string_op(ab, "fowner", args[0].from, >> entry->fowner_op); >> diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c >> index 43752002c222..513b457ae900 100644 >> --- a/security/integrity/ima/ima_template_lib.c >> +++ b/security/integrity/ima/ima_template_lib.c >> @@ -83,6 +83,7 @@ static void ima_show_template_data_ascii(struct seq_file *m, >> /* skip ':' and '\0' */ >> buf_ptr += 2; >> buflen -= buf_ptr - field_data->data; >> + /* fall through */ >> case DATA_FMT_DIGEST: >> case DATA_FMT_HEX: >> if (!buflen) >> diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c >> index fa98394a40d0..127aa6c58e34 100644 >> --- a/security/smack/smack_lsm.c >> +++ b/security/smack/smack_lsm.c >> @@ -3391,13 +3391,12 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode) >> */ >> final = &smack_known_star; >> /* >> - * Fall through. >> - * >> * If a smack value has been set we want to use it, >> * but since tmpfs isn't giving us the opportunity >> * to set mount options simulate setting the >> * superblock default. >> */ >> + /* Fall through */ >> default: >> /* >> * This isn't an understood special case.
