litmus-rt.git - The LITMUS^RT kernel.

diff options

author	Johannes Berg <johannes@sipsolutions.net>	2009-11-23 05:27:30 -0500
committer	John W. Linville <linville@tuxdriver.com>	2009-11-23 16:23:10 -0500
commit	45ba564d765d6165330e9bb14a197bdd348c114d (patch)
tree	3f1cb8b5349b04d449e3074da177e6eda82a3257 /kernel/hrtimer.c
parent	54ab040d24904d1fa2c0a6a27936b7c56a4efb24 (diff)

rfkill: fix miscdev ops

The /dev/rfkill ops don't refer to the module, so it is possible to unload the module while file descriptors are open. Fix this oversight. Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Cc: stable@kernel.org Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>

Diffstat (limited to 'kernel/hrtimer.c')

0 files changed, 0 insertions, 0 deletions

/****************************************************************************** * * (C)Copyright 1998,1999 SysKonnect, * a business unit of Schneider & Koch & Co. Datensysteme GmbH. * * See the file "skfddi.c" for further information. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * The information in this file is provided "AS IS" without warranty. * ******************************************************************************/ /* SMT/CMT defaults */ #include "h/types.h" #include "h/fddi.h" #include "h/smc.h" #ifndef OEM_USER_DATA #define OEM_USER_DATA "SK-NET FDDI V2.0 Userdata" #endif #ifndef lint static const char ID_sccs[] = "@(#)smtdef.c 2.53 99/08/11 (C) SK " ; #endif /* * defaults */ #define TTMS(x) ((u_long)(x)*1000L) #define TTS(x) ((u_long)(x)*1000000L) #define TTUS(x) ((u_long)(x)) #define DEFAULT_TB_MIN TTMS(5) #define DEFAULT_TB_MAX TTMS(50) #define DEFAULT_C_MIN TTUS(1600) #define DEFAULT_T_OUT TTMS(100+5) #define DEFAULT_TL_MIN TTUS(30) #define DEFAULT_LC_SHORT TTMS(50+5) #define DEFAULT_LC_MEDIUM TTMS(500+20) #define DEFAULT_LC_LONG TTS(5)+TTMS(50) #define DEFAULT_LC_EXTENDED TTS(50)+TTMS(50) #define DEFAULT_T_NEXT_9 TTMS(200+10) #define DEFAULT_NS_MAX TTUS(1310) #define DEFAULT_I_MAX TTMS(25) #define DEFAULT_IN_MAX TTMS(40) #define DEFAULT_TD_MIN TTMS(5) #define DEFAULT_T_NON_OP TTS(1) #define DEFAULT_T_STUCK TTS(8) #define DEFAULT_T_DIRECT TTMS(370) #define DEFAULT_T_JAM TTMS(370) #define DEFAULT_T_ANNOUNCE TTMS(2500) #define DEFAULT_D_MAX TTUS(1617) #define DEFAULT_LEM_ALARM (8) #define DEFAULT_LEM_CUTOFF (7) #define DEFAULT_TEST_DONE TTS(1) #define DEFAULT_CHECK_POLL TTS(1) #define DEFAULT_POLL TTMS(50) /* * LCT errors threshold */ #define DEFAULT_LCT_SHORT 1 #define DEFAULT_LCT_MEDIUM 3 #define DEFAULT_LCT_LONG 5 #define DEFAULT_LCT_EXTEND 50 /* Forward declarations */ void smt_reset_defaults(struct s_smc *smc, int level); static void smt_init_mib(struct s_smc *smc, int level); static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper); #define MS2BCLK(x) ((x)*12500L) #define US2BCLK(x) ((x)*1250L) void smt_reset_defaults(struct s_smc *smc, int level) { struct smt_config *smt ; int i ; u_long smt_boot_time; smt_init_mib(smc,level) ; smc->os.smc_version = SMC_VERSION ; smt_boot_time = smt_get_time(); for( i = 0; i < NUMMACS; i++ ) smc->sm.last_tok_time[i] = smt_boot_time ; smt = &smc->s ; smt->attach_s = 0 ; smt->build_ring_map = 1 ; smt->sas = SMT_DAS ; smt->numphys = NUMPHYS ; smt->pcm_tb_min = DEFAULT_TB_MIN ; smt->pcm_tb_max = DEFAULT_TB_MAX ; smt->pcm_c_min = DEFAULT_C_MIN ; smt->pcm_t_out = DEFAULT_T_OUT ; smt->pcm_tl_min = DEFAULT_TL_MIN ; smt->pcm_lc_short = DEFAULT_LC_SHORT ; smt->pcm_lc_medium = DEFAULT_LC_MEDIUM ; smt->pcm_lc_long = DEFAULT_LC_LONG ; smt->pcm_lc_extended = DEFAULT_LC_EXTENDED ; smt->pcm_t_next_9 = DEFAULT_T_NEXT_9 ; smt->pcm_ns_max = DEFAULT_NS_MAX ; smt->ecm_i_max = DEFAULT_I_MAX ; smt->ecm_in_max = DEFAULT_IN_MAX ; smt->ecm_td_min = DEFAULT_TD_MIN ; smt->ecm_test_done = DEFAULT_TEST_DONE ; smt->ecm_check_poll = DEFAULT_CHECK_POLL ; smt->rmt_t_non_op = DEFAULT_T_NON_OP ; smt->rmt_t_stuck = DEFAULT_T_STUCK ; smt->rmt_t_direct = DEFAULT_T_DIRECT ; smt->rmt_t_jam = DEFAULT_T_JAM ; smt->rmt_t_announce = DEFAULT_T_ANNOUNCE ; smt->rmt_t_poll = DEFAULT_POLL ; smt->rmt_dup_mac_behavior = FALSE ; /* See Struct smt_config */ smt->mac_d_max = DEFAULT_D_MAX ; smt->lct_short = DEFAULT_LCT_SHORT ; smt->lct_medium = DEFAULT_LCT_MEDIUM ; smt->lct_long = DEFAULT_LCT_LONG ; smt->lct_extended = DEFAULT_LCT_EXTEND ; #ifndef SLIM_SMT #ifdef ESS if (level == 0) { smc->ess.sync_bw_available = FALSE ; smc->mib.fddiESSPayload = 0 ; smc->mib.fddiESSOverhead = 0 ; smc->mib.fddiESSMaxTNeg = (u_long)(- MS2BCLK(25)) ; smc->mib.fddiESSMinSegmentSize = 1 ; smc->mib.fddiESSCategory = SB_STATIC ; smc->mib.fddiESSSynchTxMode = FALSE ; smc->ess.raf_act_timer_poll = FALSE ; smc->ess.timer_count = 7 ; /* first RAF alc req after 3s */ } smc->ess.local_sba_active = FALSE ; smc->ess.sba_reply_pend = NULL ; #endif #ifdef SBA smt_init_sba(smc,level) ; #endif #endif /* no SLIM_SMT */ #ifdef TAG_MODE if (level == 0) { smc->hw.pci_fix_value = 0 ; } #endif } /* * manufacturer data */ static const char man_data[32] = /* 01234567890123456789012345678901 */ "xxxSK-NET FDDI SMT 7.3 - V2.8.8" ; static void smt_init_mib(struct s_smc *smc, int level) { struct fddi_mib *mib ; struct fddi_mib_p *pm ; int port ; int path ; mib = &smc->mib ; if (level == 0) { /* * set EVERYTHING to ZERO * EXCEPT hw and os */ memset(((char *)smc)+ sizeof(struct s_smt_os)+sizeof(struct s_smt_hw), 0, sizeof(struct s_smc) - sizeof(struct s_smt_os) - sizeof(struct s_smt_hw)) ; } else { mib->fddiSMTRemoteDisconnectFlag = 0 ; mib->fddiSMTPeerWrapFlag = 0 ; } mib->fddiSMTOpVersionId = 2 ; mib->fddiSMTHiVersionId = 2 ; mib->fddiSMTLoVersionId = 2 ; memcpy((char *) mib->fddiSMTManufacturerData,man_data,32) ; if (level == 0) { strcpy(mib->fddiSMTUserData,OEM_USER_DATA) ; } mib->fddiSMTMIBVersionId = 1 ; mib->fddiSMTMac_Ct = NUMMACS ; mib->fddiSMTConnectionPolicy = POLICY_MM | POLICY_AA | POLICY_BB ; /* * fddiSMTNonMaster_Ct and fddiSMTMaster_Ct are set in smt_fixup_mib * s.sas is not set yet (is set in init driver) */ mib->fddiSMTAvailablePaths = MIB_PATH_P | MIB_PATH_S ; mib->fddiSMTConfigCapabilities = 0 ; /* no hold,no wrap_ab*/ mib->fddiSMTTT_Notify = 10 ; mib->fddiSMTStatRptPolicy = TRUE ; mib->fddiSMTTrace_MaxExpiration = SEC2MIB(7) ; mib->fddiSMTMACIndexes = INDEX_MAC ; mib->fddiSMTStationStatus = MIB_SMT_STASTA_SEPA ; /* separated */ mib->m[MAC0].fddiMACIndex = INDEX_MAC ; mib->m[MAC0].fddiMACFrameStatusFunctions = FSC_TYPE0 ; mib->m[MAC0].fddiMACRequestedPaths = MIB_P_PATH_LOCAL | MIB_P_PATH_SEC_ALTER | MIB_P_PATH_PRIM_ALTER ; mib->m[MAC0].fddiMACAvailablePaths = MIB_PATH_P ; mib->m[MAC0].fddiMACCurrentPath = MIB_PATH_PRIMARY ; mib->m[MAC0].fddiMACT_MaxCapabilitiy = (u_long)(- MS2BCLK(165)) ; mib->m[MAC0].fddiMACTVXCapabilitiy = (u_long)(- US2BCLK(52)) ; if (level == 0) { mib->m[MAC0].fddiMACTvxValue = (u_long)(- US2BCLK(27)) ; mib->m[MAC0].fddiMACTvxValueMIB = (u_long)(- US2BCLK(27)) ; mib->m[MAC0].fddiMACT_Req = (u_long)(- MS2BCLK(165)) ; mib->m[MAC0].fddiMACT_ReqMIB = (u_long)(- MS2BCLK(165)) ; mib->m[MAC0].fddiMACT_Max = (u_long)(- MS2BCLK(165)) ; mib->m[MAC0].fddiMACT_MaxMIB = (u_long)(- MS2BCLK(165)) ; mib->m[MAC0].fddiMACT_Min = (u_long)(- MS2BCLK(4)) ; } mib->m[MAC0].fddiMACHardwarePresent = TRUE ; mib->m[MAC0].fddiMACMA_UnitdataEnable = TRUE ; mib->m[MAC0].fddiMACFrameErrorThreshold = 1 ; mib->m[MAC0].fddiMACNotCopiedThreshold = 1 ; /* * Path attributes */ for (path = 0 ; path < NUMPATHS ; path++) { mib->a[path].fddiPATHIndex = INDEX_PATH + path ; if (level == 0) { mib->a[path].fddiPATHTVXLowerBound = (u_long)(- US2BCLK(27)) ; mib->a[path].fddiPATHT_MaxLowerBound = (u_long)(- MS2BCLK(165)) ; mib->a[path].fddiPATHMaxT_Req = (u_long)(- MS2BCLK(165)) ; } } /* * Port attributes */ pm = mib->p ; for (port = 0 ; port < NUMPHYS ; port++) { /* * set MIB pointer in phy */ /* Attention: don't initialize mib pointer here! */ /* It must be initialized during phase 2 */ smc->y[port].mib = NULL; mib->fddiSMTPORTIndexes[port] = port+INDEX_PORT ; pm->fddiPORTIndex = port+INDEX_PORT ; pm->fddiPORTHardwarePresent = TRUE ; if (level == 0) { pm->fddiPORTLer_Alarm = DEFAULT_LEM_ALARM ; pm->fddiPORTLer_Cutoff = DEFAULT_LEM_CUTOFF ; } /* * fddiPORTRequestedPaths are set in pcmplc.c * we don't know the port type yet ! */ pm->fddiPORTRequestedPaths[1] = 0 ; pm->fddiPORTRequestedPaths[2] = 0 ; pm->fddiPORTRequestedPaths[3] = 0 ; pm->fddiPORTAvailablePaths = MIB_PATH_P ; pm->fddiPORTPMDClass = MIB_PMDCLASS_MULTI ; pm++ ; } (void) smt_set_mac_opvalues(smc) ; } int smt_set_mac_opvalues(struct s_smc *smc) { int st ; int st2 ; st = set_min_max(1,smc->mib.m[MAC0].fddiMACTvxValueMIB, smc->mib.a[PATH0].fddiPATHTVXLowerBound, &smc->mib.m[MAC0].fddiMACTvxValue) ; st |= set_min_max(0,smc->mib.m[MAC0].fddiMACT_MaxMIB, smc->mib.a[PATH0].fddiPATHT_MaxLowerBound, &smc->mib.m[MAC0].fddiMACT_Max) ; st |= (st2 = set_min_max(0,smc->mib.m[MAC0].fddiMACT_ReqMIB, smc->mib.a[PATH0].fddiPATHMaxT_Req, &smc->mib.m[MAC0].fddiMACT_Req)) ; if (st2) { /* Treq attribute changed remotely. So send an AIX_EVENT to the * user */ AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long) FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_T_REQ, smt_get_event_word(smc)); } return(st) ; } void smt_fixup_mib(struct s_smc *smc) { #ifdef CONCENTRATOR switch (smc->s.sas) { case SMT_SAS : smc->mib.fddiSMTNonMaster_Ct = 1 ; break ; case SMT_DAS : smc->mib.fddiSMTNonMaster_Ct = 2 ; break ; case SMT_NAC : smc->mib.fddiSMTNonMaster_Ct = 0 ; break ; } smc->mib.fddiSMTMaster_Ct = NUMPHYS - smc->mib.fddiSMTNonMaster_Ct ; #else switch (smc->s.sas) { case SMT_SAS : smc->mib.fddiSMTNonMaster_Ct = 1 ; break ; case SMT_DAS : smc->mib.fddiSMTNonMaster_Ct = 2 ; break ; } smc->mib.fddiSMTMaster_Ct = 0 ; #endif } /* * determine new setting for operational value * if limit is lower than mib * use limit * else * use mib * NOTE : numbers are negative, negate comparison ! */ static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper) { u_long old ; old = *oper ; if ((limit > mib) ^ maxflag) *oper = limit ; else *oper = mib ; return(old != *oper) ; }


context:
space:
mode: