hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

random: use init_utsname() instead of utsname() 

Rather than going through the current-> indirection for utsname, at this
point in boot, init_utsname()==utsname(), so just use it directly that
way. Additionally, init_utsname() appears to be available nearly always,
so move it into random_init_early().

Suggested-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2022-09-27 11:26:44 +02:00
parent 08475dab7c
commit dd54fd7dfa
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/char/random.c
View File

@ -802,6 +802,7 @@ void __init random_init_early(const char *command_line)
++i;
}
_mix_pool_bytes(init_utsname(), sizeof(*(init_utsname())));
_mix_pool_bytes(command_line, strlen(command_line));
/* Reseed if already seeded by earlier phases. */
@ -820,7 +821,6 @@ void __init random_init(void)
unsigned long entropy = random_get_entropy();
ktime_t now = ktime_get_real();
_mix_pool_bytes(utsname(), sizeof(*(utsname())));
_mix_pool_bytes(&now, sizeof(now));
_mix_pool_bytes(&entropy, sizeof(entropy));
add_latent_entropy();