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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 00/10] Improvements for random.h/archrandom.h
Date: Wed,  6 Nov 2019 15:12:58 +0100	[thread overview]
Message-ID: <20191106141308.30535-1-rth@twiddle.net> (raw)

During patch review for an addition of archrandom.h for arm64, it was
suggeted that the arch_random_get_* functions should be marked __must_check.
Which does sound like a good idea, since the by-reference integer output
may be uninitialized when the boolean result is false.

In addition, it turns out that arch_has_random() and arch_has_random_seed()
are not used, and not easy to support for arm64.  Rather than cobble
something together that would not be testable, remove the interfaces
against some future accidental use.

In addition, I noticed a few other minor inconsistencies between the
different architectures, e.g. powerpc isn't using bool.

Change since v1:
  * Remove arch_has_random, arch_has_random_seed.


r~


Richard Henderson (10):
  x86: Remove arch_has_random, arch_has_random_seed
  powerpc: Remove arch_has_random, arch_has_random_seed
  s390: Remove arch_has_random, arch_has_random_seed
  linux/random.h: Remove arch_has_random, arch_has_random_seed
  linux/random.h: Use false with bool
  linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
  x86: Mark archrandom.h functions __must_check
  powerpc: Use bool in archrandom.h
  powerpc: Mark archrandom.h functions __must_check
  s390x: Mark archrandom.h functions __must_check

 arch/powerpc/include/asm/archrandom.h | 27 +++++++++-----------------
 arch/s390/include/asm/archrandom.h    | 20 ++++---------------
 arch/x86/include/asm/archrandom.h     | 28 ++++++++++++---------------
 include/linux/random.h                | 24 ++++++++---------------
 4 files changed, 33 insertions(+), 66 deletions(-)

-- 
2.17.1


             reply	other threads:[~2019-11-06 14:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-06 14:12 Richard Henderson [this message]
2019-11-06 14:12 ` [PATCH v2 01/10] x86: Remove arch_has_random, arch_has_random_seed Richard Henderson
2019-11-06 14:13 ` [PATCH v2 02/10] powerpc: " 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

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