Module Name: src Committed By: christos Date: Sat Dec 15 22:05:24 UTC 2018
Modified Files: src/sys/dev/wscons: wsdisplay_compat_usl.c Log Message: - Use kmem_intr_{alloc,free}, because on time out we need to free from an interrupt context. - Remove parens from returns and useless casts from void. To generate a diff of this commit: cvs rdiff -u -r1.51 -r1.52 src/sys/dev/wscons/wsdisplay_compat_usl.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/dev/wscons/wsdisplay_compat_usl.c diff -u src/sys/dev/wscons/wsdisplay_compat_usl.c:1.51 src/sys/dev/wscons/wsdisplay_compat_usl.c:1.52 --- src/sys/dev/wscons/wsdisplay_compat_usl.c:1.51 Fri Nov 3 21:52:09 2017 +++ src/sys/dev/wscons/wsdisplay_compat_usl.c Sat Dec 15 17:05:23 2018 @@ -1,4 +1,4 @@ -/* $NetBSD: wsdisplay_compat_usl.c,v 1.51 2017/11/04 01:52:09 christos Exp $ */ +/* $NetBSD: wsdisplay_compat_usl.c,v 1.52 2018/12/15 22:05:23 christos Exp $ */ /* * Copyright (c) 1998 @@ -27,7 +27,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: wsdisplay_compat_usl.c,v 1.51 2017/11/04 01:52:09 christos Exp $"); +__KERNEL_RCSID(0, "$NetBSD: wsdisplay_compat_usl.c,v 1.52 2018/12/15 22:05:23 christos Exp $"); #ifdef _KERNEL_OPT #include "opt_compat_freebsd.h" @@ -101,7 +101,7 @@ usl_sync_init(struct wsscreen *scr, stru struct usl_syncdata *sd; int res; - sd = kmem_alloc(sizeof(*sd), KM_SLEEP); + sd = kmem_intr_alloc(sizeof(*sd), KM_SLEEP); sd->s_scr = scr; sd->s_proc = p; @@ -116,11 +116,11 @@ usl_sync_init(struct wsscreen *scr, stru callout_setfunc(&sd->s_detach_ch, usl_detachtimeout, sd); res = wsscreen_attach_sync(scr, &usl_syncops, sd); if (res) { - kmem_free(sd, sizeof(*sd)); - return (res); + kmem_intr_free(sd, sizeof(*sd)); + return res; } *sdp = sd; - return (0); + return 0; } static void @@ -135,7 +135,7 @@ usl_sync_done(struct usl_syncdata *sd) (*sd->s_callback)(sd->s_cbarg, ENXIO, 0); } wsscreen_detach_sync(sd->s_scr); - kmem_free(sd, sizeof(*sd)); + kmem_intr_free(sd, sizeof(*sd)); } static int @@ -148,13 +148,13 @@ usl_sync_check_sig(struct usl_syncdata * if (sig) psignal(sd->s_proc, sig); mutex_exit(proc_lock); - return (1); + return 1; } mutex_exit(proc_lock); - printf("usl_sync_check: process %d died\n", sd->s_pid); + printf("%s: process %d died\n", __func__, sd->s_pid); usl_sync_done(sd); - return (0); + return 0; } static int @@ -171,8 +171,8 @@ usl_sync_get(struct wsscreen *scr) void *sd; if (wsscreen_lookup_sync(scr, &usl_syncops, &sd)) - return (0); - return (struct usl_syncdata *)sd; + return 0; + return sd; } static int @@ -183,7 +183,7 @@ usl_detachproc(void *cookie, int waitok, /* we really need a callback */ if (!callback) - return (EINVAL); + return EINVAL; /* * Normally, this is called from the controlling process. @@ -194,19 +194,19 @@ usl_detachproc(void *cookie, int waitok, sd->s_cbarg = cbarg; if (waitok) { if (!usl_sync_check_sig(sd, sd->s_relsig, SF_DETACHPENDING)) - return (0); + return 0; } callout_schedule(&sd->s_detach_ch, wscompat_usl_synctimeout * hz); - return (EAGAIN); + return EAGAIN; } static int usl_detachack(struct usl_syncdata *sd, int ack) { if (!(sd->s_flags & SF_DETACHPENDING)) { - printf("usl_detachack: not detaching\n"); - return (EINVAL); + printf("%s: not detaching\n", __func__); + return EINVAL; } callout_stop(&sd->s_detach_ch); @@ -215,7 +215,7 @@ usl_detachack(struct usl_syncdata *sd, i if (sd->s_callback) (*sd->s_callback)(sd->s_cbarg, (ack ? 0 : EIO), 1); - return (0); + return 0; } static void @@ -223,10 +223,10 @@ usl_detachtimeout(void *arg) { struct usl_syncdata *sd = arg; - printf("usl_detachtimeout\n"); + printf("%s\n", __func__); if (!(sd->s_flags & SF_DETACHPENDING)) { - printf("usl_detachtimeout: not detaching\n"); + printf("%s: not detaching\n", __func__); return; } @@ -246,23 +246,23 @@ usl_attachproc(void *cookie, int waitok, /* we really need a callback */ if (!callback) - return (EINVAL); + return EINVAL; sd->s_callback = callback; sd->s_cbarg = cbarg; if (!usl_sync_check_sig(sd, sd->s_acqsig, SF_ATTACHPENDING)) - return (0); + return 0; callout_schedule(&sd->s_attach_ch, wscompat_usl_synctimeout * hz); - return (EAGAIN); + return EAGAIN; } static int usl_attachack(struct usl_syncdata *sd, int ack) { if (!(sd->s_flags & SF_ATTACHPENDING)) { - printf("usl_attachack: not attaching\n"); - return (EINVAL); + printf("%s: not attaching\n", __func__); + return EINVAL; } callout_stop(&sd->s_attach_ch); @@ -271,7 +271,7 @@ usl_attachack(struct usl_syncdata *sd, i if (sd->s_callback) (*sd->s_callback)(sd->s_cbarg, (ack ? 0 : EIO), 1); - return (0); + return 0; } static void @@ -279,10 +279,10 @@ usl_attachtimeout(void *arg) { struct usl_syncdata *sd = arg; - printf("usl_attachtimeout\n"); + printf("%s\n", __func__); if (!(sd->s_flags & SF_ATTACHPENDING)) { - printf("usl_attachtimeout: not attaching\n"); + printf("%s: not attaching\n", __func__); return; } @@ -307,14 +307,14 @@ wsdisplay_usl_ioctl1(device_t dv, u_long for (idx = 0; idx <= maxidx; idx++) { if (wsdisplay_screenstate(sc, idx) == 0) { *(int *)data = idx + 1; - return (0); + return 0; } } - return (ENXIO); + return ENXIO; case VT_GETACTIVE: idx = wsdisplay_getactivescreen(sc); *(int *)data = idx + 1; - return (0); + return 0; case VT_ACTIVATE: /* * a gross and disgusting hack to make this abused up ioctl, @@ -326,13 +326,13 @@ wsdisplay_usl_ioctl1(device_t dv, u_long idx = *(long *)data - 1; if (idx < 0) - return (EINVAL); - return (wsdisplay_switch(dv, idx, 1)); + return EINVAL; + return wsdisplay_switch(dv, idx, 1); case VT_WAITACTIVE: idx = *(long *)data - 1; if (idx < 0) - return (EINVAL); - return (wsscreen_switchwait(sc, idx)); + return EINVAL; + return wsscreen_switchwait(sc, idx); case VT_GETSTATE: #define ss ((struct vt_stat *)data) idx = wsdisplay_getactivescreen(sc); @@ -343,7 +343,7 @@ wsdisplay_usl_ioctl1(device_t dv, u_long if (wsdisplay_screenstate(sc, idx) == EBUSY) ss->v_state |= (1 << (idx + 1)); #undef ss - return (0); + return 0; #ifdef WSDISPLAY_COMPAT_PCVT case VGAPCVTID: @@ -352,16 +352,16 @@ wsdisplay_usl_ioctl1(device_t dv, u_long id->rmajor = 3; id->rminor = 32; #undef id - return (0); + return 0; #endif #ifdef WSDISPLAY_COMPAT_SYSCONS case CONS_GETVERS: *(int *)data = 0x200; /* version 2.0 */ - return (0); + return 0; #endif default: - return (EPASSTHROUGH); + return EPASSTHROUGH; } } @@ -383,14 +383,14 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so res = usl_sync_init(scr, &sd, p, newmode->acqsig, newmode->relsig, newmode->frsig); if (res) - return (res); + return res; } else { sd = usl_sync_get(scr); if (sd) usl_sync_done(sd); } #undef newmode - return (0); + return 0; case VT_GETMODE: #define cmode ((struct vt_mode *)data) sd = usl_sync_get(scr); @@ -402,20 +402,20 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so } else cmode->mode = VT_AUTO; #undef cmode - return (0); + return 0; case VT_RELDISP: #define d (*(long *)data) sd = usl_sync_get(scr); if (!sd) - return (EINVAL); + return EINVAL; switch (d) { case VT_FALSE: case VT_TRUE: - return (usl_detachack(sd, (d == VT_TRUE))); + return usl_detachack(sd, (d == VT_TRUE)); case VT_ACKACQ: - return (usl_attachack(sd, 1)); + return usl_attachack(sd, 1); default: - return (EINVAL); + return EINVAL; } #undef d @@ -423,7 +423,7 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so #if defined(__i386__) && (defined(COMPAT_11) || defined(COMPAT_FREEBSD)) if (kauth_authorize_machdep(l->l_cred, KAUTH_MACHDEP_IOPL, NULL, NULL, NULL, NULL) != 0) - return (EPERM); + return EPERM; #endif /* FALLTHRU */ case KDDISABIO: @@ -437,13 +437,13 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so fp->tf_eflags &= ~PSL_IOPL; } #endif - return (0); + return 0; case KDSETRAD: /* XXX ignore for now */ - return (0); + return 0; default: - return (EPASSTHROUGH); + return EPASSTHROUGH; /* * the following are converted to wsdisplay ioctls @@ -459,7 +459,7 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so intarg = WSDISPLAYIO_MODE_EMUL; break; default: - return (EINVAL); + return EINVAL; } #undef d arg = &intarg; @@ -512,7 +512,7 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so intarg = WSKBD_TRANSLATED; break; default: - return (EINVAL); + return EINVAL; } arg = &intarg; break; @@ -525,7 +525,7 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so res = wsdisplay_internal_ioctl(sc, scr, req, arg, flag, l); if (res != EPASSTHROUGH) - return (res); + return res; switch (cmd) { case KDGETLED: @@ -546,5 +546,5 @@ wsdisplay_usl_ioctl2(struct wsdisplay_so #endif } - return (0); + return 0; }