diff options
| author | David S. Miller <davem@davemloft.net> | 2018-01-11 21:27:54 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-11 22:13:42 -0500 |
| commit | 19d28fbd306e7ae7c1acf05c3e6968b56f0d196b (patch) | |
| tree | 0584a3a4639424733bad7714796f858aa7addee7 /arch/mips/kernel/process.c | |
| parent | 8c2e6c904fd8701a8d02d2bdb86871dc3ec4e85b (diff) | |
| parent | 1545dec46db3858bbce84c2065b579e2925706ab (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
BPF alignment tests got a conflict because the registers
are output as Rn_w instead of just Rn in net-next, and
in net a fixup for a testcase prohibits logical operations
on pointers before using them.
Also, we should attempt to patch BPF call args if JIT always on is
enabled. Instead, if we fail to JIT the subprogs we should pass
an error back up and fail immediately.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/mips/kernel/process.c')
| -rw-r--r-- | arch/mips/kernel/process.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 45d0b6b037ee..57028d49c202 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -705,6 +705,18 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value) struct task_struct *t; int max_users; + /* If nothing to change, return right away, successfully. */ + if (value == mips_get_process_fp_mode(task)) + return 0; + + /* Only accept a mode change if 64-bit FP enabled for o32. */ + if (!IS_ENABLED(CONFIG_MIPS_O32_FP64_SUPPORT)) + return -EOPNOTSUPP; + + /* And only for o32 tasks. */ + if (IS_ENABLED(CONFIG_64BIT) && !test_thread_flag(TIF_32BIT_REGS)) + return -EOPNOTSUPP; + /* Check the value is valid */ if (value & ~known_bits) return -EOPNOTSUPP; |