Cast all ioctl command arguments through uint32_t internally.
Hide debug print showing use of sign extended ioctl command argument under INVARIANTS. The print is available to all and can easily fill up the logs. No functional change intended. MFC after: 1 week Sponsored by: Mellanox Technologies
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=359968
@ -652,18 +652,19 @@ int
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sys_ioctl(struct thread *td, struct ioctl_args *uap)
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{
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u_char smalldata[SYS_IOCTL_SMALL_SIZE] __aligned(SYS_IOCTL_SMALL_ALIGN);
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u_long com;
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uint32_t com;
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int arg, error;
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u_int size;
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caddr_t data;
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#ifdef INVARIANTS
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if (uap->com > 0xffffffff) {
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printf(
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"WARNING pid %d (%s): ioctl sign-extension ioctl %lx\n",
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td->td_proc->p_pid, td->td_name, uap->com);
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uap->com &= 0xffffffff;
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}
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com = uap->com;
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#endif
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com = (uint32_t)uap->com;
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/*
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* Interpret high order word to find amount of data to be
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