This is a note to let you know that I've just added the patch titled
x86: Remove arch_has_random, arch_has_random_seed
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-remove-arch_has_random-arch_has_random_seed.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Jun 16 07:08:33 PM CEST 2022
From: Richard Henderson <richard.henderson@xxxxxxxxxx>
Date: Fri, 10 Jan 2020 14:54:13 +0000
Subject: x86: Remove arch_has_random, arch_has_random_seed
From: Richard Henderson <richard.henderson@xxxxxxxxxx>
commit 5f2ed7f5b99b54389b74e53309677831ac9cb9d7 upstream.
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@xxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200110145422.49141-2-broonie@xxxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/include/asm/archrandom.h | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
--- a/arch/x86/include/asm/archrandom.h
+++ b/arch/x86/include/asm/archrandom.h
@@ -86,10 +86,6 @@ static inline bool rdseed_int(unsigned i
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,
@@ -99,22 +95,22 @@ static inline bool rdseed_int(unsigned i
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);
Patches currently in stable-queue which might be from richard.henderson@xxxxxxxxxx are
queue-4.14/linux-random.h-remove-arch_has_random-arch_has_random_seed.patch
queue-4.14/powerpc-remove-arch_has_random-arch_has_random_seed.patch
queue-4.14/powerpc-use-bool-in-archrandom.h.patch
queue-4.14/s390-remove-arch_has_random-arch_has_random_seed.patch
queue-4.14/linux-random.h-mark-config_arch_random-functions-__must_check.patch
queue-4.14/linux-random.h-use-false-with-bool.patch
queue-4.14/x86-remove-arch_has_random-arch_has_random_seed.patch
