This is a resend of a series from Richard Henderson last posted back in November: https://lore.kernel.org/linux-arm-kernel/20191106141308.30535-1-rth@xxxxxxxxxxx/ Back then Borislav said they looked good and asked if he should take them through the tip tree but things seem to have got lost since then. Original cover letter: 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. 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(-) -- 2.20.1
