diff options
| author | Michael Kelley <mhklinux@outlook.com> | 2026-01-18 09:02:45 -0800 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2026-02-04 06:08:05 +0000 |
| commit | 754cf84504ea7dad1e9439b93f8729409ef2c2f2 (patch) | |
| tree | 0dc3e7551f1485928831ee7adfa19a50ba76cc16 /drivers/hv | |
| parent | 90fb0a25f6543d2403dcd82e6f0bece92fa7f54c (diff) | |
mshv: Fix compiler warning about cast converting incompatible function type
In mshv_vtl_sint_ioctl_pause_msg_stream(), the reference to function
mshv_vtl_synic_mask_vmbus_sint() is cast to type smp_call_func_t. The
cast generates a compiler warning because the function signature of
mshv_vtl_synic_mask_vmbus_sint() doesn't match smp_call_func_t.
There's no actual bug here because the mis-matched function signatures
are compatible at runtime. Nonetheless, eliminate the compiler warning
by changing the function signature of mshv_vtl_synic_mask_vmbus_sint()
to match what on_each_cpu() expects. Remove the cast because it is then
no longer necessary.
No functional change.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202601170352.qbh3EKH5-lkp@intel.com/
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Reviewed-by: Naman Jain <namjain@linux.microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/mshv_vtl_main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/hv/mshv_vtl_main.c b/drivers/hv/mshv_vtl_main.c index 2cebe9de5a5a..7bbbce009732 100644 --- a/drivers/hv/mshv_vtl_main.c +++ b/drivers/hv/mshv_vtl_main.c @@ -845,9 +845,10 @@ static const struct file_operations mshv_vtl_fops = { .mmap = mshv_vtl_mmap, }; -static void mshv_vtl_synic_mask_vmbus_sint(const u8 *mask) +static void mshv_vtl_synic_mask_vmbus_sint(void *info) { union hv_synic_sint sint; + const u8 *mask = info; sint.as_uint64 = 0; sint.vector = HYPERVISOR_CALLBACK_VECTOR; @@ -999,7 +1000,7 @@ static int mshv_vtl_sint_ioctl_pause_msg_stream(struct mshv_sint_mask __user *ar if (copy_from_user(&mask, arg, sizeof(mask))) return -EFAULT; guard(mutex)(&vtl2_vmbus_sint_mask_mutex); - on_each_cpu((smp_call_func_t)mshv_vtl_synic_mask_vmbus_sint, &mask.mask, 1); + on_each_cpu(mshv_vtl_synic_mask_vmbus_sint, &mask.mask, 1); WRITE_ONCE(vtl_synic_mask_vmbus_sint_masked, mask.mask != 0); if (mask.mask) wake_up_interruptible_poll(&fd_wait_queue, EPOLLIN); |