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authorJason A. Donenfeld <Jason@zx2c4.com>2022-06-07 17:00:16 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2022-06-10 11:28:16 +0200
commit39e0f991a62ed5efabd20711a7b6e7da92603170 (patch)
tree5a584232dd7b7c037cb3d05a464519c57499766f /drivers/char/random.c
parent9b29b6b20376ab64e1b043df6301d8a92378e631 (diff)
random: mark bootloader randomness code as __init
add_bootloader_randomness() and the variables it touches are only used during __init and not after, so mark these as __init. At the same time, unexport this, since it's only called by other __init code that's built-in. Cc: stable@vger.kernel.org Fixes: 428826f5358c ("fdt: add support for rng-seed") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'drivers/char/random.c')
-rw-r--r--drivers/char/random.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 4862d4d3ec49..0d6fb3eaf609 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -725,8 +725,8 @@ static void __cold _credit_init_bits(size_t bits)
**********************************************************************/
static bool used_arch_random;
-static bool trust_cpu __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU);
-static bool trust_bootloader __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_BOOTLOADER);
+static bool trust_cpu __initdata = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU);
+static bool trust_bootloader __initdata = IS_ENABLED(CONFIG_RANDOM_TRUST_BOOTLOADER);
static int __init parse_trust_cpu(char *arg)
{
return kstrtobool(arg, &trust_cpu);
@@ -865,13 +865,12 @@ EXPORT_SYMBOL_GPL(add_hwgenerator_randomness);
* Handle random seed passed by bootloader, and credit it if
* CONFIG_RANDOM_TRUST_BOOTLOADER is set.
*/
-void __cold add_bootloader_randomness(const void *buf, size_t len)
+void __init add_bootloader_randomness(const void *buf, size_t len)
{
mix_pool_bytes(buf, len);
if (trust_bootloader)
credit_init_bits(len * 8);
}
-EXPORT_SYMBOL_GPL(add_bootloader_randomness);
#if IS_ENABLED(CONFIG_VMGENID)
static BLOCKING_NOTIFIER_HEAD(vmfork_chain);