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Message-Id: <20220316192010.19001-9-rdunlap@infradead.org>
Date:   Wed, 16 Mar 2022 12:20:09 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Jens Axboe <axboe@...nel.dk>, Amit Shah <amit@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Eli Cohen <eli@...lanox.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Krzysztof Opasiak <k.opasiak@...sung.com>,
        Igor Kotrasinski <i.kotrasinsk@...sung.com>,
        Valentina Manea <valentina.manea.m@...il.com>,
        Shuah Khan <shuah@...nel.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Jussi Kivilinna <jussi.kivilinna@...et.fi>,
        Joachim Fritschi <jfritschi@...enet.de>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Thomas Gleixner <tglx@...utronix.de>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...nel.org>,
        Karol Herbst <karolherbst@...il.com>,
        Pekka Paalanen <ppaalanen@...il.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, netfilter-devel@...r.kernel.org,
        coreteam@...filter.org, netdev@...r.kernel.org,
        linux-block@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-usb@...r.kernel.org, nouveau@...ts.freedesktop.org,
        virtualization@...ts.linux-foundation.org, x86@...nel.org
Subject: [PATCH 8/9] x86/crypto: eliminate anonymous module_init & module_exit

Eliminate anonymous module_init() and module_exit(), which can lead to
confusion or ambiguity when reading System.map, crashes/oops/bugs,
or an initcall_debug log.

Give each of these init and exit functions unique driver-specific
names to eliminate the anonymous names.

Example 1: (System.map)
 ffffffff832fc78c t init
 ffffffff832fc79e t init
 ffffffff832fc8f8 t init

Example 2: (initcall_debug log)
 calling  init+0x0/0x12 @ 1
 initcall init+0x0/0x12 returned 0 after 15 usecs
 calling  init+0x0/0x60 @ 1
 initcall init+0x0/0x60 returned 0 after 2 usecs
 calling  init+0x0/0x9a @ 1
 initcall init+0x0/0x9a returned 0 after 74 usecs

Fixes: 64b94ceae8c1 ("crypto: blowfish - add x86_64 assembly implementation")
Fixes: 676a38046f4f ("crypto: camellia-x86_64 - module init/exit functions should be static")
Fixes: 0b95ec56ae19 ("crypto: camellia - add assembler implementation for x86_64")
Fixes: 56d76c96a9f3 ("crypto: serpent - add AVX2/x86_64 assembler implementation of serpent cipher")
Fixes: b9f535ffe38f ("[CRYPTO] twofish: i586 assembly version")
Fixes: ff0a70fe0536 ("crypto: twofish-x86_64-3way - module init/exit functions should be static")
Fixes: 8280daad436e ("crypto: twofish - add 3-way parallel x86_64 assembler implemention")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Jussi Kivilinna <jussi.kivilinna@...et.fi>
Cc: Joachim Fritschi <jfritschi@...enet.de>
Cc: Herbert Xu <herbert@...dor.apana.org.au>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: linux-crypto@...r.kernel.org
Cc: x86@...nel.org
---
 arch/x86/crypto/blowfish_glue.c     |    8 ++++----
 arch/x86/crypto/camellia_glue.c     |    8 ++++----
 arch/x86/crypto/serpent_avx2_glue.c |    8 ++++----
 arch/x86/crypto/twofish_glue.c      |    8 ++++----
 arch/x86/crypto/twofish_glue_3way.c |    8 ++++----
 5 files changed, 20 insertions(+), 20 deletions(-)

--- lnx-517-rc8.orig/arch/x86/crypto/blowfish_glue.c
+++ lnx-517-rc8/arch/x86/crypto/blowfish_glue.c
@@ -315,7 +315,7 @@ static int force;
 module_param(force, int, 0);
 MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist");
 
-static int __init init(void)
+static int __init blowfish_init(void)
 {
 	int err;
 
@@ -339,15 +339,15 @@ static int __init init(void)
 	return err;
 }
 
-static void __exit fini(void)
+static void __exit blowfish_fini(void)
 {
 	crypto_unregister_alg(&bf_cipher_alg);
 	crypto_unregister_skciphers(bf_skcipher_algs,
 				    ARRAY_SIZE(bf_skcipher_algs));
 }
 
-module_init(init);
-module_exit(fini);
+module_init(blowfish_init);
+module_exit(blowfish_fini);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Blowfish Cipher Algorithm, asm optimized");
--- lnx-517-rc8.orig/arch/x86/crypto/camellia_glue.c
+++ lnx-517-rc8/arch/x86/crypto/camellia_glue.c
@@ -1377,7 +1377,7 @@ static int force;
 module_param(force, int, 0);
 MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist");
 
-static int __init init(void)
+static int __init camellia_init(void)
 {
 	int err;
 
@@ -1401,15 +1401,15 @@ static int __init init(void)
 	return err;
 }
 
-static void __exit fini(void)
+static void __exit camellia_fini(void)
 {
 	crypto_unregister_alg(&camellia_cipher_alg);
 	crypto_unregister_skciphers(camellia_skcipher_algs,
 				    ARRAY_SIZE(camellia_skcipher_algs));
 }
 
-module_init(init);
-module_exit(fini);
+module_init(camellia_init);
+module_exit(camellia_fini);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Camellia Cipher Algorithm, asm optimized");
--- lnx-517-rc8.orig/arch/x86/crypto/serpent_avx2_glue.c
+++ lnx-517-rc8/arch/x86/crypto/serpent_avx2_glue.c
@@ -96,7 +96,7 @@ static struct skcipher_alg serpent_algs[
 
 static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)];
 
-static int __init init(void)
+static int __init serpent_avx2_init(void)
 {
 	const char *feature_name;
 
@@ -115,14 +115,14 @@ static int __init init(void)
 					      serpent_simd_algs);
 }
 
-static void __exit fini(void)
+static void __exit serpent_avx2_fini(void)
 {
 	simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs),
 				  serpent_simd_algs);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(serpent_avx2_init);
+module_exit(serpent_avx2_fini);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Serpent Cipher Algorithm, AVX2 optimized");
--- lnx-517-rc8.orig/arch/x86/crypto/twofish_glue.c
+++ lnx-517-rc8/arch/x86/crypto/twofish_glue.c
@@ -81,18 +81,18 @@ static struct crypto_alg alg = {
 	}
 };
 
-static int __init init(void)
+static int __init twofish_glue_init(void)
 {
 	return crypto_register_alg(&alg);
 }
 
-static void __exit fini(void)
+static void __exit twofish_glue_fini(void)
 {
 	crypto_unregister_alg(&alg);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(twofish_glue_init);
+module_exit(twofish_glue_fini);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION ("Twofish Cipher Algorithm, asm optimized");
--- lnx-517-rc8.orig/arch/x86/crypto/twofish_glue_3way.c
+++ lnx-517-rc8/arch/x86/crypto/twofish_glue_3way.c
@@ -140,7 +140,7 @@ static int force;
 module_param(force, int, 0);
 MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist");
 
-static int __init init(void)
+static int __init twofish_3way_init(void)
 {
 	if (!force && is_blacklisted_cpu()) {
 		printk(KERN_INFO
@@ -154,13 +154,13 @@ static int __init init(void)
 					 ARRAY_SIZE(tf_skciphers));
 }
 
-static void __exit fini(void)
+static void __exit twofish_3way_fini(void)
 {
 	crypto_unregister_skciphers(tf_skciphers, ARRAY_SIZE(tf_skciphers));
 }
 
-module_init(init);
-module_exit(fini);
+module_init(twofish_3way_init);
+module_exit(twofish_3way_fini);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Twofish Cipher Algorithm, 3-way parallel asm optimized");

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