LinuxPPC-Dev Archive on lore.kernel.org
 help / color / Atom feed
From: Richard Henderson <richard.henderson@linaro.org>
To: linux-crypto@vger.kernel.org
Cc: linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
	herbert@gondor.apana.org.au, x86@kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 01/10] x86: Remove arch_has_random, arch_has_random_seed
Date: Wed,  6 Nov 2019 15:12:59 +0100
Message-ID: <20191106141308.30535-2-rth@twiddle.net> (raw)
In-Reply-To: <20191106141308.30535-1-rth@twiddle.net>

Use the expansion of these macros directly in arch_get_random_*.

These symbols are currently part of the generic archrandom.h
interface, but are currently unused and can be removed.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/x86/include/asm/archrandom.h | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/x86/include/asm/archrandom.h b/arch/x86/include/asm/archrandom.h
index af45e1452f09..feb59461046c 100644
--- a/arch/x86/include/asm/archrandom.h
+++ b/arch/x86/include/asm/archrandom.h
@@ -73,10 +73,6 @@ static inline bool rdseed_int(unsigned int *v)
 	return ok;
 }
 
-/* Conditional execution based on CPU type */
-#define arch_has_random()	static_cpu_has(X86_FEATURE_RDRAND)
-#define arch_has_random_seed()	static_cpu_has(X86_FEATURE_RDSEED)
-
 /*
  * These are the generic interfaces; they must not be declared if the
  * stubs in <linux/random.h> are to be invoked,
@@ -86,22 +82,22 @@ static inline bool rdseed_int(unsigned int *v)
 
 static inline bool arch_get_random_long(unsigned long *v)
 {
-	return arch_has_random() ? rdrand_long(v) : false;
+	return static_cpu_has(X86_FEATURE_RDRAND) ? rdrand_long(v) : false;
 }
 
 static inline bool arch_get_random_int(unsigned int *v)
 {
-	return arch_has_random() ? rdrand_int(v) : false;
+	return static_cpu_has(X86_FEATURE_RDRAND) ? rdrand_int(v) : false;
 }
 
 static inline bool arch_get_random_seed_long(unsigned long *v)
 {
-	return arch_has_random_seed() ? rdseed_long(v) : false;
+	return static_cpu_has(X86_FEATURE_RDSEED) ? rdseed_long(v) : false;
 }
 
 static inline bool arch_get_random_seed_int(unsigned int *v)
 {
-	return arch_has_random_seed() ? rdseed_int(v) : false;
+	return static_cpu_has(X86_FEATURE_RDSEED) ? rdseed_int(v) : false;
 }
 
 extern void x86_init_rdrand(struct cpuinfo_x86 *c);
-- 
2.17.1


  reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-06 14:12 [PATCH v2 00/10] Improvements for random.h/archrandom.h Richard Henderson
2019-11-06 14:12 ` Richard Henderson [this message]
2019-11-06 14:13 ` [PATCH v2 02/10] powerpc: Remove arch_has_random, arch_has_random_seed Richard Henderson
2019-11-06 14:13 ` [PATCH v2 03/10] s390: " Richard Henderson
2019-11-06 14:13 ` [PATCH v2 04/10] linux/random.h: " Richard Henderson
2019-11-06 14:13 ` [PATCH v2 05/10] linux/random.h: Use false with bool Richard Henderson
2019-11-06 14:13 ` [PATCH v2 06/10] linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check Richard Henderson
2019-11-06 14:13 ` [PATCH v2 07/10] x86: Mark archrandom.h " Richard Henderson
2019-11-06 14:13 ` [PATCH v2 08/10] powerpc: Use bool in archrandom.h Richard Henderson
2019-11-06 14:13 ` [PATCH v2 09/10] powerpc: Mark archrandom.h functions __must_check Richard Henderson
2019-11-06 14:13 ` [PATCH v2 10/10] s390x: " Richard Henderson
2019-11-11 17:20 ` [PATCH v2 00/10] Improvements for random.h/archrandom.h Borislav Petkov

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191106141308.30535-2-rth@twiddle.net \
    --to=richard.henderson@linaro.org \
    --cc=herbert@gondor.apana.org.au \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-crypto@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LinuxPPC-Dev Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linuxppc-dev/0 linuxppc-dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linuxppc-dev linuxppc-dev/ https://lore.kernel.org/linuxppc-dev \
		linuxppc-dev@lists.ozlabs.org linuxppc-dev@ozlabs.org
	public-inbox-index linuxppc-dev

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.ozlabs.lists.linuxppc-dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git