diff options
| author | George Spelvin <[email protected]> | 2019-03-21 10:42:22 +0000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2019-04-20 12:03:11 +0000 |
| commit | 80d04b7fabe161a23d143b3bfcfca1b002c23da1 (patch) | |
| tree | c6e44382032d68519aa3975307fb0ece3c23d4b0 /arch/powerpc/lib/code-patching.c | |
| parent | powerpc: Remove duplicate headers (diff) | |
| download | kernel-80d04b7fabe161a23d143b3bfcfca1b002c23da1.tar.gz kernel-80d04b7fabe161a23d143b3bfcfca1b002c23da1.zip | |
powerpc/crypto: Use cheaper random numbers for crc-vpmsum self-test
This code was filling a 64K buffer from /dev/urandom in order to
compute a CRC over (on average half of) it by two different methods,
comparing the CRCs, and repeating.
This is not a remotely security-critical application, so use the far
faster and cheaper prandom_u32() generator.
And, while we're at it, only fill as much of the buffer as we plan to use.
Signed-off-by: George Spelvin <[email protected]>
Acked-by: Daniel Axtens <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
0 files changed, 0 insertions, 0 deletions