#include #include #include #include #include "rnd.h" #include "die.h" #include "ioexact.h" #include "ioops.h" static int fdw = -1; static void randombytes_weak(unsigned char *x, unsigned long long xlen) { int ret; if (fdw == -1) { for (;;) { fdw = open(LOW_ENTROPY_SOURCE, O_RDONLY); if (fdw != -1) break; sleep(1); } } while (xlen > 0) { if (xlen < 1048576) ret = xlen; else ret = 1048576; ret = read(fdw, x, ret); if (ret < 1) { sleep(1); continue; } x += ret; xlen -= ret; } } static void randombytes_strong(unsigned char *x, unsigned long long xlen) { int fds, ret; fds = open_or_die(HIG_ENTROPY_SOURCE, O_RDONLY); ret = read_exact(fds, x, xlen, 0); if (ret != xlen) panic("Error reading from entropy source!\n"); close(fds); } int secrand(void) { int ret; randombytes_weak((void *) &ret, sizeof(ret)); return ret; } void gen_key_bytes(unsigned char *area, size_t len) { randombytes_strong(area, len); } > net-next plumbingsTobias Klauser

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author	Lucas Stach <l.stach@pengutronix.de>	2016-01-25 16:49:57 -0600
committer	Bjorn Helgaas <bhelgaas@google.com>	2016-01-25 16:49:57 -0600
commit	a77c5422d7586003643377afdb9915e76d07d21c (patch)
tree	b32131f28500c4068cf60af0de60d451603b8612 /Documentation
parent	54a47a83421a3b7ee0e0fab7f65d04179bdf59b6 (diff)

PCI: imx6: Remove broken Gen2 workaround

Remove the remnants of the workaround for erratum ERR005184 which was never completely implemented. The checks alone don't carry any value as we don't act properly on the result. A workaround should be added to the lane speed change in establish_link later. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Diffstat (limited to 'Documentation')