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| author |   Ben Dooks <ben.dooks@codethink.co.uk> | 2023-11-23 14:27:08 +0000 |
|---|---|---|
| committer |   Palmer Dabbelt <palmer@rivosinc.com> | 2024-01-09 20:10:18 -0800 |
| commit | 869436dae72acf1629b41437e9d08d31a7360fdb (patch) | |
| tree | fb29cefe28756a653a5e218e3f3e4d1c7f625f69 | |
| parent | riscv: fix __user annotation in traps_misaligned.c (diff) | |
| download | wireguard-linux-869436dae72acf1629b41437e9d08d31a7360fdb.tar.xz wireguard-linux-869436dae72acf1629b41437e9d08d31a7360fdb.zip | |
riscv; fix __user annotation in save_v_state()
The save_v_state() is technically sending a __user pointer through
__put_user() and thus is generating a sparse warning so force the
value to be "void *" to fix:
arch/riscv/kernel/signal.c:94:16: warning: incorrect type in initializer (different address spaces)
arch/riscv/kernel/signal.c:94:16: expected void *__val
arch/riscv/kernel/signal.c:94:16: got void [noderef] __user *[assigned] datap
Fixes: 8ee0b41898fa26f66e32 ("riscv: signal: Add sigcontext save/restore for vector")
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Link: https://lore.kernel.org/r/20231123142708.261733-1-ben.dooks@codethink.co.uk
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| -rw-r--r-- | arch/riscv/kernel/signal.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c index 88b6220b2608..33dfb5078301 100644 --- a/arch/riscv/kernel/signal.c +++ b/arch/riscv/kernel/signal.c @@ -91,7 +91,7 @@ static long save_v_state(struct pt_regs *regs, void __user **sc_vec) err = __copy_to_user(&state->v_state, ¤t->thread.vstate, offsetof(struct __riscv_v_ext_state, datap)); /* Copy the pointer datap itself. */ - err |= __put_user(datap, &state->v_state.datap); + err |= __put_user((__force void *)datap, &state->v_state.datap); /* Copy the whole vector content to user space datap. */ err |= __copy_to_user(datap, current->thread.vstate.datap, riscv_v_vsize); /* Copy magic to the user space after saving all vector conetext */ |