$ # search for :-\( in linux kernel
$ # of course we can use grep, but I like ack-grep more.
$ ack-grep ':-\('
include/linux/lockdep.h
28: * the total number of states... :-(

include/uapi/linux/route.h
43:#define rt_mss   rt_mtu          /* Compatibility :-(            */
57:#define RTF_MSS      RTF_MTU     /* Compatibility :-(        */

include/net/pkt_sched.h
33:   The result: [34]86 is not good choice for QoS router :-(

drivers/input/joystick/zhenhua.c
28: * coder :-(

drivers/usb/serial/cypress_m8.c
515:           attempted :-( */

drivers/ide/ide-cd_ioctl.c
209: * rate. :-(  Requesting too fast a speed will _not_ produce an error.

drivers/ide/hpt366.c
1217:        * so we'll have to serialize them... :-(
1373:        * to both functions -- really stupid design decision... :-(

drivers/mfd/mc13xxx-core.c
607:    /* there is no asnprintf in the kernel :-( */

drivers/staging/comedi/drivers/pcl812.c
684:                /*  we cann't use DMA :-( */
1216:           return -EBUSY;  /* no buffer :-( */

drivers/staging/comedi/drivers/pcl818.c
1187:           if (nowmustbechan != CR_CHAN(chanlist[i])) {    /*  channel list isn't continuous :-( */
1725:           return -EBUSY;  /* no buffer :-( */
1730:       if (devpriv->dma_rtc == 0) {    /*  we must do duble buff :-( */

drivers/staging/comedi/drivers/pcl816.c
885:                /*  channel list isn't continuous :-( */
1126:           return -EBUSY;  /* no buffer :-( */
1133:       if (devpriv->dma_rtc == 0) {    /*  we must do duble buff :-( */

drivers/staging/comedi/drivers/adl_pci9118.c
87:              * but reality looks like 255 :-(

drivers/isdn/hardware/avm/t1isa.c
82:  * but no function there to prevent this :-(

drivers/isdn/pcbit/drv.c
293: * Another Hack :-(

drivers/isdn/i4l/isdn_v110.c
204:                /* returning now is not the right thing, though :-( */
213:                /* returning now is not the right thing, though :-( */

drivers/scsi/sgiwd93.c
114:     * wd33c93 shouldn't pass us bogus dma_setups, but it does:-(  The

drivers/scsi/sr_ioctl.c
29:/* The sr_is_xa() seems to trigger firmware bugs with some drives :-(

drivers/scsi/dc395x.c
2032: * Seems to be needed for unknown reasons; could be a hardware bug :-(
2555:                * or chip is to blame :-( */
2563:            * something broke :-( */

drivers/scsi/atari_NCR5380.c
296: * cannot know it in advance :-( We just see a QUEUE_FULL status being
2199:                        * mid level cannot handle QUEUE FULL :-( (The

drivers/scsi/ncr53c8xx.c
7682:** Test the bus snoop logic :-(

drivers/scsi/atari_scsi.c
54:/* This sounds complicated (and it is it :-(), but it seems to be a       */
571:        panic("Falcon SCSI: someone stole the lock :-(\n");
977: * 255*512 bytes :-( This means also, that defining READ_OVERRUNS is not
1000:    * will be lost in the ST-DMA's FIFO :-( Thus, we have to distinguish

drivers/scsi/aic7xxx/aic7xxx_core.c
958:     * We upset the sequencer :-(

drivers/scsi/sun3_NCR5380.c
285: * cannot know it in advance :-( We just see a QUEUE_FULL status being
2164:            * mid level cannot handle QUEUE FULL :-( (The

drivers/scsi/sym53c8xx_2/sym_hipd.c
970: *  Test the pci bus snoop logic :-(

drivers/mtd/cmdlinepart.c
37: * edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)

drivers/firmware/iscsi_ibft.c
667:        * iBFT spec doesn't have a domain id field :-(

drivers/atm/zatm.c
42: *  - support 64 kB SDUs (will have to use multibuffer batches then :-( )

drivers/i2c/busses/i2c-sis5595.c
175:     * interfere with ACPI :-(  */

drivers/i2c/busses/i2c-iop3xx.c
89: /* NB SR bits not same position as CR IE bits :-( */

drivers/macintosh/via-maciisi.c
290:     * for this long, it's probably not coming back :-( */

drivers/message/fusion/mptscsih.c
708:             * killing interrupt handler:-(

drivers/message/fusion/mptlan.c
210:            //  item back onto its adapter FreeQ - Oops!:-(

drivers/message/fusion/mptctl.c
1094:                   "not enough memory!   :-(\n", ioc->name);
1121:               "-SG: No can do - " "Chain required!   :-(\n", ioc->name);
1130:               "too many SG frags!   :-(\n", ioc->name);

drivers/media/pci/bt8xx/bttv-audio-hook.c
207:        /* autodetect doesn't work with this card :-( */

drivers/media/pci/ttpci/av7110.c
2846:        * loose some. This sucks :-(

drivers/media/usb/pvrusb2/pvrusb2-hdw.c
171:        /* Already using audio_mode elsewhere :-( */

drivers/media/usb/stk1160/stk1160-ac97.c
108:    /* TODO: I'm not sure where should I get these names :-( */

drivers/media/usb/stk1160/stk1160-v4l.c
480:        /* TODO: Support me please :-( */

drivers/media/usb/dvb-usb-v2/af9015.c
584:       content :-( Override some wrong values here. Ditto for the

drivers/media/usb/dvb-usb-v2/anysee.c
885:        /* we have no frontend :-( */

drivers/media/i2c/tvaudio.c
936:         * error count. So in fact there is no stereo in this case :-(

drivers/block/amiflop.c
36: *  - both got broken the first time I tampered with the driver :-(
43: *    processor :-(

drivers/block/ataflop.c
9: *   - Support for two drives; should work, but I cannot test that :-(
14: *     don't have an HD drive :-(
957:         * recognise that it isn't present :-(
1263: * no matter what :-( To save time, the seek goes to the track we're
1296:        * last seek command, the WP bit still reads wrong :-((
1312:/* The detection of disk changes is a dark chapter in Atari history :-(
1571:        * or the next access will revalidate - and clear UDT :-(
1820:        * interrupts on this IRQ line :-(
1943:          card. But the test is too hard :-( */

drivers/block/floppy.c
4373:    * Unfortunately, Adaptec doesn't know this :-(, */

drivers/block/paride/frpw.c
221:   a hack :-(

drivers/video/pm2fb.c
1373:   /* Too large of a cursor or wrong bpp :-( */

drivers/video/matrox/matroxfb_DAC1064.c
135:           Doing so cause immediate PCI lockup :-( Maybe they should

drivers/video/matrox/matroxfb_base.c
1354:/* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for

drivers/video/pm3fb.c
627:    /* Too large of a cursor or wrong bpp :-( */

drivers/video/tdfxfb.c
1067:   /* Too large of a cursor or wrong bpp :-( */

drivers/net/wan/cosa.c
190: * macro doesn't like anything other than the raw number as an argument :-(
1657: * It's time to use the bottom half :-(

drivers/net/wan/hdlc_x25.c
85: hdlc->xmit(skb, dev); /* Ignore return value :-( */

drivers/net/irda/irda-usb.h
78: * UHCI : frame period = 1ms, but notification can take 2 or 3 ms :-(

drivers/net/irda/irda-usb.c
172:        /* Hum... Ugly hack :-(
1735:    * some heavy and complete testing. Don't ask why :-(

drivers/net/wireless/wl3501.h
231:          but sizeof(enum) > sizeof(u8) :-( */

drivers/net/wireless/at76c50x-usb.c
2387:    * at76_get_op_mode() fail too :-( */

drivers/net/wireless/orinoco/orinoco_cs.c
216:       layer to not suck :-( */

drivers/net/ethernet/broadcom/b44.c
655:       to/from anything above 1GB :-( */

drivers/net/ethernet/dlink/de620.c
63: * ports, so I can't test such a driver :-(

drivers/net/ethernet/sis/sis900.c
1813:              we are working on NULL sk_buff :-( */

drivers/net/ethernet/nvidia/forcedeth.c
737: *  needs netdev_priv(dev)->lock :-(

drivers/net/ethernet/realtek/8139too.c
259:    /* Bogus 8139 silicon reports 8129 without external PROM :-( */

drivers/net/ethernet/amd/declance.c
183: * 16 bytes of valid data followed by a 16 byte gap :-(.
1084:        * setup the pointer arrays, this sucks [tm] :-(
1160:        * setup the pointer arrays, this sucks [tm] :-(

drivers/net/ethernet/sun/sungem.c
2480:/* Jumbo-grams don't seem to work :-( */

drivers/net/fddi/defxx.c
511: *   It compiles so it should work :-( (PCI cards do :-)
3576: *   It compiles so it should work :-( (PCI cards do :-)

drivers/eisa/eisa-bus.c
267:         * very likely to fail... :-( Instead, grab the EISA

usr/include/linux/route.h
42:#define rt_mss   rt_mtu          /* Compatibility :-(            */
55:#define RTF_MSS      RTF_MTU     /* Compatibility :-(        */

arch/alpha/include/asm/smp.h
9:/* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */

arch/alpha/include/asm/core_apecs.h
41:   we can't just use that here, because of header file looping... :-(

arch/alpha/kernel/time.c
250:   timing hardware for any one method to work everywhere.  :-(

arch/alpha/kernel/sys_rawhide.c
147:     * Also, PCI #1 interrupts are offset some more... :-(

arch/alpha/kernel/sys_noritake.c
110:     * So, here's this additional grotty hack... :-(

arch/alpha/kernel/sys_sio.c
246:     * burst mode for the NCR 8xx SCSI... :-(
397:           selected... :-(  */

arch/alpha/kernel/sys_miata.c
53:  * So, here's this grotty hack... :-(

arch/alpha/boot/bootp.c
192:     * the latter... :-(

arch/alpha/boot/bootpz.c
330:     * former into the latter... :-(

arch/powerpc/kernel/prom_init.c
1764:       /* It seems OF doesn't null-terminate the path :-( */
2116:       /* It seems OF doesn't null-terminate the path :-( */

arch/powerpc/kernel/pci-common.c
624:     * 32 bits CHRPs :-(

arch/microblaze/pci/pci-common.c
606:     * 32 bits CHRPs :-(

arch/mips/include/asm/inst.h
196: * Damn ...  bitfields depend from byteorder :-(

arch/mips/math-emu/dsemul.c
35: * 2) it can be a COP instruction :-(
37: *    special care on memory access instructions :-(

arch/mips/mm/tlbex.c
1579:               /* You lose the SMP race :-(*/
1587:           /* You lose the SMP race :-(*/
1617:       /* You lose the SMP race :-(*/
1653:           /* You lose the SMP race :-(*/

arch/frv/kernel/process.c
145:    /* fork almost works, enough to trick you into looking elsewhere:-( */

arch/sh/kernel/process_32.c
254:    /* fork almost works, enough to trick you into looking elsewhere :-( */

arch/parisc/include/asm/dma.h
35:** won't compile :-(

arch/parisc/kernel/syscall_table.S
252:     * Unfortunately it contains a long :-( */

arch/m68k/atari/ataints.c
6: *  twiddled there and we won't get the right interrupts :-()

arch/m68k/atari/atasound.c
42: /* Busy wait for data being completely sent :-( */

arch/um/sys-ppc/miscthings.c
10: * move it up. :-(

arch/x86/kernel/apm_32.c
139: *         Fix the Thinkpad (again) :-( (CONFIG_APM_IGNORE_MULTIPLE_SUSPENDS

arch/x86/kernel/pci-calgary_64.c
825:    /* Can't free bootmem allocated memory after system is up :-( */

arch/x86/kernel/apic/apic.c
1357:    * away, oh well :-(

scripts/docproc.c
526:         * and exported in different files :-((

debian/headertmp/usr/include/linux/route.h
42:#define rt_mss   rt_mtu          /* Compatibility :-(            */
55:#define RTF_MSS      RTF_MTU     /* Compatibility :-(        */

debian/hdrtmp/usr/src/linux-headers-3.7.8-light/include/linux/lockdep.h
28: * the total number of states... :-(

debian/hdrtmp/usr/src/linux-headers-3.7.8-light/include/uapi/linux/route.h
43:#define rt_mss   rt_mtu          /* Compatibility :-(            */
57:#define RTF_MSS      RTF_MTU     /* Compatibility :-(        */

debian/hdrtmp/usr/src/linux-headers-3.7.8-light/include/net/pkt_sched.h
33:   The result: [34]86 is not good choice for QoS router :-(

debian/hdrtmp/usr/src/linux-headers-3.7.8-light/scripts/docproc.c
526:         * and exported in different files :-((

block/partitions/atari.c
58:          * :-()

block/genhd.c
829:    /* stop is called even after start failed :-( */

sound/oss/dmasound/dmasound_core.c
171: * we will have trouble spotting it - and the fault will be rather obscure :-(

sound/oss/pas2_card.c
251:             * bit 0 = MPU401 emulation (CDPC only :-( )

sound/ppc/burgundy.c
627:        printk(KERN_WARNING "pmac burgundy: disabled by MacOS :-(\n");

fs/hpfs/ea.c
297:                /* Aargh... don't know how to create ea anodes :-( */

fs/ncpfs/dir.c
1102:      it is not :-( */

fs/ncpfs/sock.c
208:    /* sock_sendmsg updates iov pointers for us :-( */
225:    /* sock_sendmsg updates iov pointers for us :-( */

fs/reiserfs/reiserfs.h
1886:excessive effort to avoid disturbing the precious VFS code.:-( The

net/netrom/af_netrom.c
943:         * apparently kills BPQ boxes... :-(

net/core/skbuff.c
1463:                   /* Sucks! We need to fork list. :-( */

net/dccp/timer.c
48:            black hole detection. :-(

net/irda/irnet/irnet.h
168: *      (but PPP doesn't read the MTU value :-()

net/irda/af_irda.c
675:            /* Something bad did happen :-( */

net/irda/irlap_event.c
445:            IRDA_DEBUG(1, "%s(), Receiving final discovery request, missed the discovery slots :-(\n", __func__);
602:        IRDA_DEBUG(1, "%s(), Receiving discovery request (s = %d) while performing discovery :-(\n", __func__, info->s);

net/irda/irlan/irlan_client_event.c
432:            IRDA_DEBUG(2, "%s(), lost the battle :-(\n", __func__ );

net/ipv4/ipconfig.c
1560:       ic_proto_enabled &= ~IC_USE_DHCP; /* backward compat :-( */

net/ipv4/route.c
1770:      hardware multicast filters :-( As result the host on multicasting

net/ipv4/fib_frontend.c
694: * Really, it should be netlink message, but :-( netlink

net/ipv4/tcp_output.c
94: * Using SND.UNA we will fail to open window, SND.NXT is out of window. :-(

net/rds/ib_cm.c
417:     * We really should have changed this for OFED 1.3 :-(

net/rds/iw_cm.c
359:     * We really should have changed this for OFED 1.3 :-( */

net/sched/sch_cbq.c
853:            /* Class did not give us any skb :-(
1007:   /* No packets in scheduler or nobody wants to give them to us :-(

net/llc/af_llc.c
466:        dprintk("%s: llc_ui_send_conn failed :-(\n", __func__);

net/netfilter/ipset/ip_set_core.c
1066:            * manually :-( */