Bug Summary

File:dev/pci/if_xl_pci.c
Warning:line 285, column 4
3rd function call argument is an uninitialized value

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name if_xl_pci.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -ffreestanding -mcmodel=kernel -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -target-feature -sse2 -target-feature -sse -target-feature -3dnow -target-feature -mmx -target-feature +save-args -target-feature +retpoline-external-thunk -disable-red-zone -no-implicit-float -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -nostdsysteminc -nobuiltininc -resource-dir /usr/local/llvm16/lib/clang/16 -I /usr/src/sys -I /usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -I /usr/src/sys/arch -I /usr/src/sys/dev/pci/drm/include -I /usr/src/sys/dev/pci/drm/include/uapi -I /usr/src/sys/dev/pci/drm/amd/include/asic_reg -I /usr/src/sys/dev/pci/drm/amd/include -I /usr/src/sys/dev/pci/drm/amd/amdgpu -I /usr/src/sys/dev/pci/drm/amd/display -I /usr/src/sys/dev/pci/drm/amd/display/include -I /usr/src/sys/dev/pci/drm/amd/display/dc -I /usr/src/sys/dev/pci/drm/amd/display/amdgpu_dm -I /usr/src/sys/dev/pci/drm/amd/pm/inc -I /usr/src/sys/dev/pci/drm/amd/pm/legacy-dpm -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu11 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu12 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu13 -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/inc -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/hwmgr -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/smumgr -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc/pmfw_if -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc/hw -I /usr/src/sys/dev/pci/drm/amd/display/dc/clk_mgr -I /usr/src/sys/dev/pci/drm/amd/display/modules/inc -I /usr/src/sys/dev/pci/drm/amd/display/modules/hdcp -I /usr/src/sys/dev/pci/drm/amd/display/dmub/inc -I /usr/src/sys/dev/pci/drm/i915 -D DDB -D DIAGNOSTIC -D KTRACE -D ACCOUNTING -D KMEMSTATS -D PTRACE -D POOL_DEBUG -D CRYPTO -D SYSVMSG -D SYSVSEM -D SYSVSHM -D UVM_SWAP_ENCRYPT -D FFS -D FFS2 -D FFS_SOFTUPDATES -D UFS_DIRHASH -D QUOTA -D EXT2FS -D MFS -D NFSCLIENT -D NFSSERVER -D CD9660 -D UDF -D MSDOSFS -D FIFO -D FUSE -D SOCKET_SPLICE -D TCP_ECN -D TCP_SIGNATURE -D INET6 -D IPSEC -D PPP_BSDCOMP -D PPP_DEFLATE -D PIPEX -D MROUTING -D MPLS -D BOOT_CONFIG -D USER_PCICONF -D APERTURE -D MTRR -D NTFS -D SUSPEND -D HIBERNATE -D PCIVERBOSE -D USBVERBOSE -D WSDISPLAY_COMPAT_USL -D WSDISPLAY_COMPAT_RAWKBD -D WSDISPLAY_DEFAULTSCREENS=6 -D X86EMU -D ONEWIREVERBOSE -D MULTIPROCESSOR -D MAXUSERS=80 -D _KERNEL -O2 -Wno-pointer-sign -Wno-address-of-packed-member -Wno-constant-conversion -Wno-unused-but-set-variable -Wno-gnu-folding-constant -fdebug-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /home/ben/Projects/scan/2024-01-11-110808-61670-1 -x c /usr/src/sys/dev/pci/if_xl_pci.c
1/* $OpenBSD: if_xl_pci.c,v 1.48 2022/03/11 18:00:50 mpi Exp $ */
2
3/*
4 * Copyright (c) 1997, 1998, 1999
5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * $FreeBSD: if_xl.c,v 1.72 2000/01/09 21:12:59 wpaul Exp $
35 */
36
37#include "bpfilter.h"
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/mbuf.h>
42#include <sys/socket.h>
43#include <sys/ioctl.h>
44#include <sys/errno.h>
45#include <sys/malloc.h>
46#include <sys/kernel.h>
47#include <sys/device.h>
48
49#include <net/if.h>
50#include <net/if_media.h>
51
52#include <netinet/in.h>
53#include <netinet/if_ether.h>
54
55#include <dev/mii/miivar.h>
56#include <dev/pci/pcireg.h>
57#include <dev/pci/pcivar.h>
58#include <dev/pci/pcidevs.h>
59
60#if NBPFILTER1 > 0
61#include <net/bpf.h>
62#endif
63
64/*
65 * The following #define causes the code to use PIO to access the
66 * chip's registers instead of memory mapped mode. The reason PIO mode
67 * is on by default is that the Etherlink XL manual seems to indicate
68 * that only the newer revision chips (3c905B) support both PIO and
69 * memory mapped access. Since we want to be compatible with the older
70 * bus master chips, we use PIO here. If you comment this out, the
71 * driver will use memory mapped I/O, which may be faster but which
72 * might not work on some devices.
73 */
74#define XL_USEIOSPACE
75
76#define XL_PCI_FUNCMEM0x0018 0x0018
77#define XL_PCI_INTR0x0004 0x0004
78#define XL_PCI_INTRACK0x8000 0x8000
79
80#include <dev/ic/xlreg.h>
81
82int xl_pci_match(struct device *, void *, void *);
83void xl_pci_attach(struct device *, struct device *, void *);
84int xl_pci_detach(struct device *, int);
85void xl_pci_intr_ack(struct xl_softc *);
86#ifndef SMALL_KERNEL
87void xl_pci_wol_power(void *);
88#endif
89
90struct xl_pci_softc {
91 struct xl_softc psc_softc;
92 pci_chipset_tag_t psc_pc;
93 pcitag_t psc_tag;
94 bus_size_t psc_iosize;
95 bus_size_t psc_funsize;
96};
97
98const struct cfattach xl_pci_ca = {
99 sizeof(struct xl_pci_softc), xl_pci_match, xl_pci_attach,
100 xl_pci_detach, xl_activate
101};
102
103const struct pci_matchid xl_pci_devices[] = {
104 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3CSOHO100TX0x7646 },
105 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C900TPO0x9000 },
106 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C900COMBO0x9001 },
107 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C900B0x9004 },
108 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C900BCOMBO0x9005 },
109 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C900BTPC0x9006 },
110 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C900BFL0x900a },
111 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C905TX0x9050 },
112 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C905T40x9051 },
113 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C905BTX0x9055 },
114 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C905BT40x9056 },
115 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C905BCOMBO0x9058 },
116 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C905BFX0x905a },
117 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C980TX0x9800 },
118 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C980CTX0x9805 },
119 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C905CTX0x9200 },
120 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C4500x4500 },
121 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C5550x5055 },
122 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C5560x6055 },
123 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C556B0x6056 },
124 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C92010x9201 },
125 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C920BEMBW0x9202 },
126 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3C5750x5057 },
127 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3CCFE575BT0x5157 },
128 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3CCFE575CT0x5257 },
129 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3CCFEM6560x6560 },
130 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3CCFEM656B0x6562 },
131 { PCI_VENDOR_3COM0x10b7, PCI_PRODUCT_3COM_3CCFEM656C0x6564 },
132};
133
134int
135xl_pci_match(struct device *parent, void *match, void *aux)
136{
137 return (pci_matchbyid((struct pci_attach_args *)aux, xl_pci_devices,
138 nitems(xl_pci_devices)(sizeof((xl_pci_devices)) / sizeof((xl_pci_devices)[0]))));
139}
140
141void
142xl_pci_attach(struct device *parent, struct device *self, void *aux)
143{
144 struct xl_pci_softc *psc = (void *)self;
145 struct xl_softc *sc = &psc->psc_softc;
146 struct pci_attach_args *pa = aux;
147 pci_chipset_tag_t pc = pa->pa_pc;
148 pci_intr_handle_t ih;
149 const char *intrstr = NULL((void *)0);
150 bus_size_t iosize, funsize;
1
'funsize' declared without an initial value
→
151#ifndef SMALL_KERNEL
152 u_int32_t command;
153#endif
154
155 psc->psc_pc = pc;
156 psc->psc_tag = pa->pa_tag;
157 sc->sc_dmat = pa->pa_dmat;
158
159 sc->xl_flags = 0;
160 sc->wol_power = sc->wol_power_arg = NULL((void *)0);
161
162 /* set required flags */
163 switch (PCI_PRODUCT(pa->pa_id)(((pa->pa_id) >> 16) & 0xffff)) {
2
←
Control jumps to the 'default' case at line 216
→
164 case TC_DEVICEID_HURRICANE_5550x5055:
165 sc->xl_flags |= XL_FLAG_EEPROM_OFFSET_300x0004 | XL_FLAG_8BITROM0x0010;
166 break;
167 case TC_DEVICEID_HURRICANE_5560x6055:
168 sc->xl_flags |= XL_FLAG_FUNCREG0x0001 | XL_FLAG_PHYOK0x0002 |
169 XL_FLAG_EEPROM_OFFSET_300x0004 | XL_FLAG_WEIRDRESET0x0008;
170 sc->xl_flags |= XL_FLAG_INVERT_LED_PWR0x0020|XL_FLAG_INVERT_MII_PWR0x0040;
171 sc->xl_flags |= XL_FLAG_8BITROM0x0010;
172 break;
173 case TC_DEVICEID_HURRICANE_556B0x6056:
174 sc->xl_flags |= XL_FLAG_FUNCREG0x0001 | XL_FLAG_PHYOK0x0002 |
175 XL_FLAG_EEPROM_OFFSET_300x0004 | XL_FLAG_WEIRDRESET0x0008;
176 sc->xl_flags |= XL_FLAG_INVERT_LED_PWR0x0020|XL_FLAG_INVERT_MII_PWR0x0040;
177 break;
178 case PCI_PRODUCT_3COM_3C92010x9201:
179 case PCI_PRODUCT_3COM_3C920BEMBW0x9202:
180 sc->xl_flags |= XL_FLAG_PHYOK0x0002;
181 break;
182 case TC_DEVICEID_BOOMERANG_10_100BT0x9050:
183 sc->xl_flags |= XL_FLAG_NO_MMIO0x0200;
184 break;
185 case PCI_PRODUCT_3COM_3C5750x5057:
186 sc->xl_flags |= XL_FLAG_PHYOK0x0002 | XL_FLAG_EEPROM_OFFSET_300x0004 |
187 XL_FLAG_8BITROM0x0010;
188 break;
189 case PCI_PRODUCT_3COM_3CCFE575BT0x5157:
190 sc->xl_flags = XL_FLAG_PHYOK0x0002 | XL_FLAG_EEPROM_OFFSET_300x0004 |
191 XL_FLAG_8BITROM0x0010 | XL_FLAG_INVERT_LED_PWR0x0020;
192 sc->xl_flags |= XL_FLAG_FUNCREG0x0001;
193 break;
194 case PCI_PRODUCT_3COM_3CCFE575CT0x5257:
195 sc->xl_flags = XL_FLAG_PHYOK0x0002 | XL_FLAG_EEPROM_OFFSET_300x0004 |
196 XL_FLAG_8BITROM0x0010 | XL_FLAG_INVERT_MII_PWR0x0040;
197 sc->xl_flags |= XL_FLAG_FUNCREG0x0001;
198 break;
199 case PCI_PRODUCT_3COM_3CCFEM6560x6560:
200 sc->xl_flags = XL_FLAG_PHYOK0x0002 | XL_FLAG_EEPROM_OFFSET_300x0004 |
201 XL_FLAG_8BITROM0x0010 | XL_FLAG_INVERT_LED_PWR0x0020 |
202 XL_FLAG_INVERT_MII_PWR0x0040;
203 sc->xl_flags |= XL_FLAG_FUNCREG0x0001;
204 break;
205 case PCI_PRODUCT_3COM_3CCFEM656B0x6562:
206 sc->xl_flags = XL_FLAG_PHYOK0x0002 | XL_FLAG_EEPROM_OFFSET_300x0004 |
207 XL_FLAG_8BITROM0x0010 | XL_FLAG_INVERT_LED_PWR0x0020 |
208 XL_FLAG_INVERT_MII_PWR0x0040;
209 sc->xl_flags |= XL_FLAG_FUNCREG0x0001;
210 break;
211 case PCI_PRODUCT_3COM_3CCFEM656C0x6564:
212 sc->xl_flags = XL_FLAG_PHYOK0x0002 | XL_FLAG_EEPROM_OFFSET_300x0004 |
213 XL_FLAG_8BITROM0x0010 | XL_FLAG_INVERT_MII_PWR0x0040;
214 sc->xl_flags |= XL_FLAG_FUNCREG0x0001;
215 break;
216 default:
217 break;
218 }
219
220 pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D00x0000);
221
222#ifndef SMALL_KERNEL
223 /*
224 * The card is WOL-capable if it supports PME# assertion
225 * from D3hot power state. Install a callback to configure
226 * PCI power state for WOL. It will be invoked when the
227 * interface stops and WOL was enabled.
228 */
229 command = pci_conf_read(pc, pa->pa_tag, XL_PCI_CAPID0xDC);
230 if ((command >> 16) & XL_PME_CAP_D3_HOT0x4000) {
3
←
Assuming the condition is false
→
4
←
Taking false branch
→
231 sc->wol_power = xl_pci_wol_power;
232 sc->wol_power_arg = psc;
233 }
234#endif
235
236 /*
237 * Map control/status registers.
238 */
239#ifdef XL_USEIOSPACE
240 if (pci_mapreg_map(pa, XL_PCI_LOIO0x10, PCI_MAPREG_TYPE_IO0x00000001, 0,
5
←
Assuming the condition is false
→
6
←
Taking false branch
→
241 &sc->xl_btag, &sc->xl_bhandle, NULL((void *)0), &iosize, 0)) {
242 printf(": can't map i/o space\n");
243 return;
244 }
245#else
246 if (pci_mapreg_map(pa, XL_PCI_LOMEM0x14, PCI_MAPREG_TYPE_MEM0x00000000, 0,
247 &sc->xl_btag, &sc->xl_bhandle, NULL((void *)0), &iosize, 0)) {
248 printf(": can't map i/o space\n");
249 return;
250 }
251#endif
252 psc->psc_iosize = iosize;
253
254 if (sc->xl_flags & XL_FLAG_FUNCREG0x0001) {
7
←
Assuming the condition is false
→
8
←
Taking false branch
→
255 if (pci_mapreg_map(pa, XL_PCI_FUNCMEM0x0018, PCI_MAPREG_TYPE_MEM0x00000000, 0,
256 &sc->xl_funct, &sc->xl_funch, NULL((void *)0), &funsize, 0)) {
257 printf(": can't map i/o space\n");
258 bus_space_unmap(sc->xl_btag, sc->xl_bhandle, iosize);
259 return;
260 }
261 psc->psc_funsize = funsize;
262 sc->intr_ack = xl_pci_intr_ack;
263 }
264
265 /*
266 * Allocate our interrupt.
267 */
268 if (pci_intr_map(pa, &ih)) {
9
←
Assuming the condition is false
→
10
←
Taking false branch
→
269 printf(": couldn't map interrupt\n");
270 bus_space_unmap(sc->xl_btag, sc->xl_bhandle, iosize);
271 if (sc->xl_flags & XL_FLAG_FUNCREG0x0001)
272 bus_space_unmap(sc->xl_funct, sc->xl_funch, funsize);
273 return;
274 }
275
276 intrstr = pci_intr_string(pc, ih);
277 sc->xl_intrhand = pci_intr_establish(pc, ih, IPL_NET0x4, xl_intr, sc,
278 self->dv_xname);
279 if (sc->xl_intrhand == NULL((void *)0)) {
11
←
Assuming field 'xl_intrhand' is equal to NULL
→
12
←
Taking true branch
→
280 printf(": couldn't establish interrupt");
281 if (intrstr != NULL((void *)0))
13
←
Assuming 'intrstr' is equal to NULL
→
14
←
Taking false branch
→
282 printf(" at %s", intrstr);
283 bus_space_unmap(sc->xl_btag, sc->xl_bhandle, iosize);
284 if (sc->xl_flags & XL_FLAG_FUNCREG0x0001)
15
←
Assuming the condition is true
→
16
←
Taking true branch
→
285 bus_space_unmap(sc->xl_funct, sc->xl_funch, funsize);
17
←
3rd function call argument is an uninitialized value
286 return;
287 }
288 printf(": %s", intrstr);
289
290 xl_attach(sc);
291}
292
293int
294xl_pci_detach(struct device *self, int flags)
295{
296 struct xl_pci_softc *psc = (void *)self;
297 struct xl_softc *sc = &psc->psc_softc;
298
299 if (sc->xl_intrhand != NULL((void *)0)) {
300 pci_intr_disestablish(psc->psc_pc, sc->xl_intrhand);
301 xl_detach(sc);
302 }
303 if (psc->psc_iosize > 0)
304 bus_space_unmap(sc->xl_btag, sc->xl_bhandle, psc->psc_iosize);
305 if (psc->psc_funsize > 0)
306 bus_space_unmap(sc->xl_funct, sc->xl_funch, psc->psc_funsize);
307 return (0);
308}
309
310void
311xl_pci_intr_ack(struct xl_softc *sc)
312{
313 bus_space_write_4(sc->xl_funct, sc->xl_funch, XL_PCI_INTR,((sc->xl_funct)->write_4((sc->xl_funch), (0x0004), (
0x8000)))
314 XL_PCI_INTRACK)((sc->xl_funct)->write_4((sc->xl_funch), (0x0004), (
0x8000)));
315}
316
317#ifndef SMALL_KERNEL
318void
319xl_pci_wol_power(void *ppsc)
320{
321 struct xl_pci_softc *psc = (struct xl_pci_softc*)ppsc;
322 u_int32_t command;
323
324 /* Make sure wake-up generation is enabled. */
325 command = pci_conf_read(psc->psc_pc, psc->psc_tag, XL_PCI_PWRMGMTCTRL0xE0);
326 command |= XL_PME_EN0x0100;
327 pci_conf_write(psc->psc_pc, psc->psc_tag, XL_PCI_PWRMGMTCTRL0xE0, command);
328}
329#endif