security: mark expected switch fall-throughs and add a missing break

PATCH In review Gustavo A. R. Silva 3 participants 7 messages Feb 8, 2019 – Feb 22, 2019

Subsystems (6)

Security (LSM) Keys-trusted Integrity measurement architecture (IMA) Extended Verification Module (EVM) +2 more subsystems

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Gustavo A. R. Silva

author

2019-02-08 20:54 UTC #0 lore raw

PATCH v2 1/1 security: mark expected switch fall-throughs and add a missing break

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_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

Also, add a missing break statement to fix the following warning:

security/integrity/ima/ima_appraise.c:116:26: warning: this statement may fall through [-Wimplicit-fallthrough=]

Acked-by John Johansen <[email protected]>

Acked-by Casey Schaufler <[email protected]>

Signed-off-by Gustavo A. R. Silva <[email protected]>

---
Changes in v2:
- Update Subject.
- Integrate a missing break in switch fix by Mimi Zohar.

 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(-)

security/apparmor/domain.c +1 -1

index 3b266a438776..ca2dccf5b445 100644
@@ -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 */

security/integrity/ima/ima_appraise.c +1 -0

index a2baa85ea2f5..5fb7127bbe68 100644
@@ -114,6 +114,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint,
 		break;
 	case CREDS_CHECK:
 		iint->ima_creds_status = status;
+		break;
 	case FILE_CHECK:
 	case POST_SETATTR:
 		iint->ima_file_status = status;

security/integrity/ima/ima_policy.c +4 -0

index 26fa9d9723f6..e0cc323f948f 100644
@@ -936,10 +936,12 @@ 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) ||

@@ -968,9 +970,11 @@ 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);

security/integrity/ima/ima_template_lib.c +1 -0

index 43752002c222..513b457ae900 100644
@@ -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)

security/smack/smack_lsm.c +1 -2

index 587dc06eba33..5c1613519d5a 100644
@@ -3380,13 +3380,12 @@ 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.

Signature · 1 line

2.20.1

Mimi Zohar

maintainer Acked-by on v2 1/1

2019-02-08 21:13 UTC #1 lore raw

Quoted 15 lines · Gustavo A. R. Silva

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_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

Quoted 7 lines

Also, add a missing break statement to fix the following warning:
security/integrity/ima/ima_appraise.c:116:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
Acked-by John Johansen <[email protected]>
Acked-by Casey Schaufler <[email protected]>
Signed-off-by Gustavo A. R. Silva <[email protected]>

Acked-by Mimi Zohar <[email protected]>

Quoted 97 lines

---
Changes in v2:
- Update Subject.
- Integrate a missing break in switch fix by Mimi Zohar.

 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(-)

security/apparmor/domain.c +1 -1

index 3b266a438776..ca2dccf5b445 100644
@@ -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 */

security/integrity/ima/ima_appraise.c +1 -0

index a2baa85ea2f5..5fb7127bbe68 100644
@@ -114,6 +114,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint,
 		break;
 	case CREDS_CHECK:
 		iint->ima_creds_status = status;
+		break;
 	case FILE_CHECK:
 	case POST_SETATTR:
 		iint->ima_file_status = status;

security/integrity/ima/ima_policy.c +4 -0

index 26fa9d9723f6..e0cc323f948f 100644
@@ -936,10 +936,12 @@ 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) ||

@@ -968,9 +970,11 @@ 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);

security/integrity/ima/ima_template_lib.c +1 -0

index 43752002c222..513b457ae900 100644
@@ -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)

security/smack/smack_lsm.c +1 -2

index 587dc06eba33..5c1613519d5a 100644
@@ -3380,13 +3380,12 @@ 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.

Gustavo A. R. Silva

author

2019-02-19 02:53 UTC #2 lore raw

Quoted 18 lines · Mimi Zohar

Quoted 17 lines · Gustavo A. R. Silva
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_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
Also, add a missing break statement to fix the following warning:

Quoted 8 lines

Quoted 5 lines
security/integrity/ima/ima_appraise.c:116:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
Acked-by John Johansen <[email protected]>
Acked-by Casey Schaufler <[email protected]>
Signed-off-by Gustavo A. R. Silva <[email protected]>
Acked-by Mimi Zohar <[email protected]>

Thanks, Mimi.

--
Gustavo

Quoted 98 lines

Quoted 97 lines

---
Changes in v2:
- Update Subject.
- Integrate a missing break in switch fix by Mimi Zohar.

 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(-)

security/apparmor/domain.c +1 -1

index 3b266a438776..ca2dccf5b445 100644
@@ -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 */

security/integrity/ima/ima_appraise.c +1 -0

index a2baa85ea2f5..5fb7127bbe68 100644
@@ -114,6 +114,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint,
 		break;
 	case CREDS_CHECK:
 		iint->ima_creds_status = status;
+		break;
 	case FILE_CHECK:
 	case POST_SETATTR:
 		iint->ima_file_status = status;

security/integrity/ima/ima_policy.c +4 -0

index 26fa9d9723f6..e0cc323f948f 100644
@@ -936,10 +936,12 @@ 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) ||

@@ -968,9 +970,11 @@ 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);

security/integrity/ima/ima_template_lib.c +1 -0

index 43752002c222..513b457ae900 100644
@@ -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)

security/smack/smack_lsm.c +1 -2

index 587dc06eba33..5c1613519d5a 100644
@@ -3380,13 +3380,12 @@ 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.

Gustavo A. R. Silva

author

2019-02-22 17:16 UTC #3 lore raw

Hi James,

I wonder if you can take this, please.

Thanks
--
Gustavo

Quoted 133 lines · Gustavo A. R. Silva

Quoted 18 lines · Mimi Zohar
Quoted 17 lines · Gustavo A. R. Silva
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_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
Also, add a missing break statement to fix the following warning:
Quoted 8 lines
Quoted 5 lines
security/integrity/ima/ima_appraise.c:116:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
Acked-by John Johansen <[email protected]>
Acked-by Casey Schaufler <[email protected]>
Signed-off-by Gustavo A. R. Silva <[email protected]>
Acked-by Mimi Zohar <[email protected]>
Thanks, Mimi.
--
Gustavo
Quoted 98 lines
Quoted 97 lines
---
Changes in v2:
- Update Subject.
- Integrate a missing break in switch fix by Mimi Zohar.
 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(-)
security/apparmor/domain.c +1 -1
index 3b266a438776..ca2dccf5b445 100644
@@ -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 */
security/integrity/ima/ima_appraise.c +1 -0
index a2baa85ea2f5..5fb7127bbe68 100644
@@ -114,6 +114,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint,
 		break;
 	case CREDS_CHECK:
 		iint->ima_creds_status = status;
+		break;
 	case FILE_CHECK:
 	case POST_SETATTR:
 		iint->ima_file_status = status;
security/integrity/ima/ima_policy.c +4 -0
index 26fa9d9723f6..e0cc323f948f 100644
@@ -936,10 +936,12 @@ 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) ||
@@ -968,9 +970,11 @@ 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);
security/integrity/ima/ima_template_lib.c +1 -0
index 43752002c222..513b457ae900 100644
@@ -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)
security/smack/smack_lsm.c +1 -2
index 587dc06eba33..5c1613519d5a 100644
@@ -3380,13 +3380,12 @@ 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.

James Morris

maintainer

2019-02-22 17:53 UTC #4 lore raw

Quoted 3 lines · Gustavo A. R. Silva

Hi James,
I wonder if you can take this, please.

Ok -- I had thought you were sending all of these upstream across the board.

Quoted 140 lines

Thanks
--
Gustavo
Quoted 133 lines · Gustavo A. R. Silva
Quoted 18 lines · Mimi Zohar
Quoted 17 lines · Gustavo A. R. Silva
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_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
Also, add a missing break statement to fix the following warning:
Quoted 8 lines
Quoted 5 lines
security/integrity/ima/ima_appraise.c:116:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
Acked-by John Johansen <[email protected]>
Acked-by Casey Schaufler <[email protected]>
Signed-off-by Gustavo A. R. Silva <[email protected]>
Acked-by Mimi Zohar <[email protected]>
Thanks, Mimi.
--
Gustavo
Quoted 98 lines
Quoted 97 lines
---
Changes in v2:
- Update Subject.
- Integrate a missing break in switch fix by Mimi Zohar.
 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(-)
security/apparmor/domain.c +1 -1
index 3b266a438776..ca2dccf5b445 100644
@@ -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 */
security/integrity/ima/ima_appraise.c +1 -0
index a2baa85ea2f5..5fb7127bbe68 100644
@@ -114,6 +114,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint,
 		break;
 	case CREDS_CHECK:
 		iint->ima_creds_status = status;
+		break;
 	case FILE_CHECK:
 	case POST_SETATTR:
 		iint->ima_file_status = status;
security/integrity/ima/ima_policy.c +4 -0
index 26fa9d9723f6..e0cc323f948f 100644
@@ -936,10 +936,12 @@ 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) ||
@@ -968,9 +970,11 @@ 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);
security/integrity/ima/ima_template_lib.c +1 -0
index 43752002c222..513b457ae900 100644
@@ -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)
security/smack/smack_lsm.c +1 -2
index 587dc06eba33..5c1613519d5a 100644
@@ -3380,13 +3380,12 @@ 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.

Signature · 2 lines

James Morris
<[email protected]>

Gustavo A. R. Silva

author

2019-02-22 22:42 UTC #5 lore raw

Quoted 10 lines · James Morris

Quoted 3 lines · Gustavo A. R. Silva
Hi James,
I wonder if you can take this, please.
Ok -- I had thought you were sending all of these upstream across the board.

Yeah, I'm only doing that in cases where patches are being ignored.

Thanks
--
Gustavo

James Morris

maintainer

2019-02-22 17:58 UTC #6 lore raw

In reply to Gustavo A. R. Silva

Quoted 5 lines · Gustavo A. R. Silva

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through.
This patch fixes the following warnings:

Quoted 8 lines

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=]

Applied to
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next-general

Signature · 2 lines

James Morris
<[email protected]>