From: Herbert Xu <herbert@gondor.apana.org.au>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>,
linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>
Subject: crypto: xor - Fix warning when XOR_SELECT_TEMPLATE is unset
Date: Fri, 26 Aug 2016 23:19:39 +0800 [thread overview]
Message-ID: <20160826151938.GA22619@gondor.apana.org.au> (raw)
In-Reply-To: <20160825211411.08858397@canb.auug.org.au>
On Thu, Aug 25, 2016 at 09:14:11PM +1000, Stephen Rothwell wrote:
>
> That looks fine to me. An alternative might be to have:
>
> #ifndef XOR_SELECT_TEMPLATE
> #define XOR_SELECT_TEMPLATE(x) (x)
> #endif
>
> near the top of the file. That gets the #ifdef out of the code flow
> and serves as some hint that such a thing can be defined by arch header
> files.
Good idea. Thanks Stephen.
---8<---
This patch fixes an unused label warning triggered when the macro
XOR_SELECT_TEMPLATE is not set.
Fixes: 39457acda913 ("crypto: xor - skip speed test if the xor...")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/xor.c b/crypto/xor.c
index b8975d9..263af9f 100644
--- a/crypto/xor.c
+++ b/crypto/xor.c
@@ -24,6 +24,10 @@
#include <linux/preempt.h>
#include <asm/xor.h>
+#ifndef XOR_SELECT_TEMPLATE
+#define XOR_SELECT_TEMPLATE(x) (x)
+#endif
+
/* The xor routines to use. */
static struct xor_block_template *active_template;
@@ -109,17 +113,14 @@ calibrate_xor_blocks(void)
void *b1, *b2;
struct xor_block_template *f, *fastest;
- fastest = NULL;
+ fastest = XOR_SELECT_TEMPLATE(NULL);
-#ifdef XOR_SELECT_TEMPLATE
- fastest = XOR_SELECT_TEMPLATE(fastest);
if (fastest) {
printk(KERN_INFO "xor: automatically using best "
"checksumming function %-10s\n",
fastest->name);
goto out;
}
-#endif
/*
* Note: Since the memory is not actually used for _anything_ but to
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
prev parent reply other threads:[~2016-08-26 15:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-25 1:38 linux-next: build warning after merge of the crypto tree Stephen Rothwell
2016-08-25 6:20 ` Martin Schwidefsky
2016-08-25 7:47 ` Herbert Xu
2016-08-25 11:14 ` Stephen Rothwell
2016-08-26 15:19 ` Herbert Xu [this message]
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