linux-kernel - [PATCH] integrity: Fix __integrity_init

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Message-Id: <20190617074452.12901-1-geert@linux-m68k.org>
Date:   Mon, 17 Jun 2019 09:44:52 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Nayna Jain <nayna@...ux.ibm.com>, Mimi Zohar <zohar@...ux.ibm.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E . Hallyn" <serge@...lyn.com>
Cc:     linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH] integrity: Fix __integrity_init_keyring() section mismatch

With gcc-4.6.3:

    WARNING: vmlinux.o(.text.unlikely+0x24c64): Section mismatch in reference from the function __integrity_init_keyring() to the function .init.text:set_platform_trusted_keys()
    The function __integrity_init_keyring() references
    the function __init set_platform_trusted_keys().
    This is often because __integrity_init_keyring lacks a __init
    annotation or the annotation of set_platform_trusted_keys is wrong.

Indeed, if the compiler decides not to inline __integrity_init_keyring(),
a warning is issued.

Fix this by adding the missing __init annotation.

Fixes: 9dc92c45177ab70e ("integrity: Define a trusted platform keyring")
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
 security/integrity/digsig.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 4582bc26770a34a7..868ade3e89702ba7 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -69,8 +69,9 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 	return -EOPNOTSUPP;
 }
 
-static int __integrity_init_keyring(const unsigned int id, key_perm_t perm,
-				    struct key_restriction *restriction)
+static int __init __integrity_init_keyring(const unsigned int id,
+					   key_perm_t perm,
+					   struct key_restriction *restriction)
 {
 	const struct cred *cred = current_cred();
 	int err = 0;
-- 
2.17.1