linux-kernel - [PATCH v5 02/18] ima: Remove some superfluous parentheses

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Date:   Tue, 17 Oct 2017 22:53:15 -0200
From:   Thiago Jung Bauermann <bauerman@...ux.vnet.ibm.com>
To:     linux-integrity@...r.kernel.org
Cc:     linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        linux-crypto@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org,
        Mimi Zohar <zohar@...ux.vnet.ibm.com>,
        Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
        James Morris <james.l.morris@...cle.com>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Jessica Yu <jeyu@...hat.com>,
        Rusty Russell <rusty@...tcorp.com.au>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        "AKASHI, Takahiro" <takahiro.akashi@...aro.org>,
        Thiago Jung Bauermann <bauerman@...ux.vnet.ibm.com>
Subject: [PATCH v5 02/18] ima: Remove some superfluous parentheses

Superfluous parentheses just add clutter to the code, making it harder to
read and to understand.

In order to avoid churn and minimize conflicts with other patches from the
community, this patch only removes superfluous parentheses from lines that
are modified by other patches in this series.

Confirmed that the patch is correct by comparing the object files from
before and after the patch. They are identical.

Signed-off-by: Thiago Jung Bauermann <bauerman@...ux.vnet.ibm.com>
---
 security/integrity/ima/ima_appraise.c     | 11 +++++------
 security/integrity/ima/ima_template_lib.c |  2 +-
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index ec7dfa02c051..bce0b36778bd 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -229,9 +229,8 @@ int ima_appraise_measurement(enum ima_hooks func,
 	}
 
 	status = evm_verifyxattr(dentry, XATTR_NAME_IMA, xattr_value, rc, iint);
-	if ((status != INTEGRITY_PASS) && (status != INTEGRITY_UNKNOWN)) {
-		if ((status == INTEGRITY_NOLABEL)
-		    || (status == INTEGRITY_NOXATTRS))
+	if (status != INTEGRITY_PASS && status != INTEGRITY_UNKNOWN) {
+		if (status == INTEGRITY_NOLABEL || status == INTEGRITY_NOXATTRS)
 			cause = "missing-HMAC";
 		else if (status == INTEGRITY_FAIL)
 			cause = "invalid-HMAC";
@@ -293,10 +292,10 @@ int ima_appraise_measurement(enum ima_hooks func,
 		     xattr_value->type != EVM_IMA_XATTR_DIGSIG)) {
 			if (!ima_fix_xattr(dentry, iint))
 				status = INTEGRITY_PASS;
-		} else if ((inode->i_size == 0) &&
+		} else if (inode->i_size == 0 &&
 			   (iint->flags & IMA_NEW_FILE) &&
-			   (xattr_value &&
-			    xattr_value->type == EVM_IMA_XATTR_DIGSIG)) {
+			   xattr_value &&
+			   xattr_value->type == EVM_IMA_XATTR_DIGSIG) {
 			status = INTEGRITY_PASS;
 		}
 		integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode, filename,
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index 28af43f63572..8bebcbb61162 100644
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -383,7 +383,7 @@ int ima_eventsig_init(struct ima_event_data *event_data,
 	int xattr_len = event_data->xattr_len;
 	int rc = 0;
 
-	if ((!xattr_value) || (xattr_value->type != EVM_IMA_XATTR_DIGSIG))
+	if (!xattr_value || xattr_value->type != EVM_IMA_XATTR_DIGSIG)
 		goto out;
 
 	rc = ima_write_template_field_data(xattr_value, xattr_len, fmt,