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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-15 10:03:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-15 10:03:15 -0700 |
| commit | 9ffc66941df278c9f4df979b6bcf6c6ddafedd16 (patch) | |
| tree | a2cff20aafb7ecb352a0c2dd41a5430f64a248e0 /drivers | |
| parent | 133d970e0dadf7b413db19893acc5b26664bf4a1 (diff) | |
| parent | 0766f788eb727e2e330d55d30545db65bcf2623f (diff) | |
| download | linux-9ffc66941df278c9f4df979b6bcf6c6ddafedd16.tar.bz2 | |
Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc plugins update from Kees Cook:
"This adds a new gcc plugin named "latent_entropy". It is designed to
extract as much possible uncertainty from a running system at boot
time as possible, hoping to capitalize on any possible variation in
CPU operation (due to runtime data differences, hardware differences,
SMP ordering, thermal timing variation, cache behavior, etc).
At the very least, this plugin is a much more comprehensive example
for how to manipulate kernel code using the gcc plugin internals"
* tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
latent_entropy: Mark functions with __latent_entropy
gcc-plugins: Add latent_entropy plugin
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/random.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index d131e152c8ce..d6876d506220 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -479,8 +479,8 @@ static ssize_t _extract_entropy(struct entropy_store *r, void *buf, static void crng_reseed(struct crng_state *crng, struct entropy_store *r); static void push_to_pool(struct work_struct *work); -static __u32 input_pool_data[INPUT_POOL_WORDS]; -static __u32 blocking_pool_data[OUTPUT_POOL_WORDS]; +static __u32 input_pool_data[INPUT_POOL_WORDS] __latent_entropy; +static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy; static struct entropy_store input_pool = { .poolinfo = &poolinfo_table[0], |