minix/lib/libsys/pci_set_acl.c
Ben Gras 35a108b911 panic() cleanup.
this change
   - makes panic() variadic, doing full printf() formatting -
     no more NO_NUM, and no more separate printf() statements
     needed to print extra info (or something in hex) before panicing
   - unifies panic() - same panic() name and usage for everyone -
     vm, kernel and rest have different names/syntax currently
     in order to implement their own luxuries, but no longer
   - throws out the 1st argument, to make source less noisy.
     the panic() in syslib retrieves the server name from the kernel
     so it should be clear enough who is panicing; e.g.
         panic("sigaction failed: %d", errno);
     looks like:
         at_wini(73130): panic: sigaction failed: 0
         syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
   - throws out report() - printf() is more convenient and powerful
   - harmonizes/fixes the use of panic() - there were a few places
     that used printf-style formatting (didn't work) and newlines
     (messes up the formatting) in panic()
   - throws out a few per-server panic() functions
   - cleans up a tie-in of tty with panic()

merging printf() and panic() statements to be done incrementally.
2010-03-05 15:05:11 +00:00

53 lines
1,000 B
C

/*
pci_set_acl.c
*/
#include "pci.h"
#include "syslib.h"
#include <unistd.h>
#include <minix/rs.h>
#include <minix/ds.h>
#include <minix/sysutil.h>
/*===========================================================================*
* pci_set_acl *
*===========================================================================*/
PUBLIC int pci_set_acl(rs_pci)
struct rs_pci *rs_pci;
{
int r;
cp_grant_id_t gid;
message m;
u32_t u32;
if (pci_procnr == ANY)
{
r= ds_retrieve_label_num("pci", &u32);
if (r != 0)
{
panic("pci_set_acl: ds_retrieve_label_num failed for 'pci': %d", r);
}
pci_procnr = u32;
}
gid= cpf_grant_direct(pci_procnr, (vir_bytes)rs_pci, sizeof(*rs_pci),
CPF_READ);
if (gid == -1)
{
printf("pci_set_acl: cpf_grant_direct failed: %d\n",
errno);
return EINVAL;
}
m.m_type= BUSC_PCI_SET_ACL;
m.m1_i1= gid;
r= sendrec(pci_procnr, &m);
cpf_revoke(gid);
if (r != 0)
panic("pci_set_acl: can't talk to PCI: %d", r);
return m.m_type;
}