#include #include #include #include #include #include #include "pager.h" #include "run-command.h" #include "sigchain.h" #include "subcmd-config.h" /* * This is split up from the rest of git so that we can do * something different on Windows. */ static int spawned_pager; static int pager_columns; void pager_init(const char *pager_env) { subcmd_config.pager_env = pager_env; } static void pager_preexec(void) { /* * Work around bug in "less" by not starting it until we * have real input */ fd_set in; FD_ZERO(&in); FD_SET(0, &in); select(1, &in, NULL, &in, NULL); setenv("LESS", "FRSX", 0); } static const char *pager_argv[] = { "sh", "-c", NULL, NULL }; static struct child_process pager_process; static void wait_for_pager(void) { fflush(stdout); fflush(stderr); /* signal EOF to pager */ close(1); close(2); finish_command(&pager_process); } static void wait_for_pager_signal(int signo) { wait_for_pager(); sigchain_pop(signo); raise(signo); } void setup_pager(void) { const char *pager = getenv(subcmd_config.pager_env); struct winsize sz; if (!isatty(1)) return; if (ioctl(1, TIOCGWINSZ, &sz) == 0) pager_columns = sz.ws_col; if (!pager) pager = getenv("PAGER"); if (!(pager || access("/usr/bin/pager", X_OK))) pager = "/usr/bin/pager"; if (!(pager || access("/usr/bin/less", X_OK))) pager = "/usr/bin/less"; if (!pager) pager = "cat"; if (!*pager || !strcmp(pager, "cat")) return; spawned_pager = 1; /* means we are emitting to terminal */ /* spawn the pager */ pager_argv[2] = pager; pager_process.argv = pager_argv; pager_process.in = -1; pager_process.preexec_cb = pager_preexec; if (start_command(&pager_process)) return; /* original process continues, but writes to the pipe */ dup2(pager_process.in, 1); if (isatty(2)) dup2(pager_process.in, 2); close(pager_process.in); /* this makes sure that the parent terminates after the pager */ sigchain_push_common(wait_for_pager_signal); atexit(wait_for_pager); } int pager_in_use(void) { return spawned_pager; } int pager_get_columns(void) { char *s; s = getenv("COLUMNS"); if (s) return atoi(s); return (pager_columns ? pager_columns : 80) - 2; }

path: root/sound/usb/usx2y/Makefile

ore

Age	Commit message (Expand)	Author	Files	Lines
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author	Thomas Gleixner <tglx@linutronix.de>	2017-01-31 19:03:21 +0100
committer	Thomas Gleixner <tglx@linutronix.de>	2017-01-31 20:22:18 +0100
commit	aaaec6fc755447a1d056765b11b24d8ff2b81366 (patch)
tree	a7f4167960ee1df86739905b6ccdeb95465bfe5f /tools/scripts
parent	08d85f3ea99f1eeafc4e8507936190e86a16ee8c (diff)

x86/irq: Make irq activate operations symmetric

The recent commit which prevents double activation of interrupts unearthed interesting code in x86. The code (ab)uses irq_domain_activate_irq() to reconfigure an already activated interrupt. That trips over the prevention code now. Fix it by deactivating the interrupt before activating the new configuration. Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once" Reported-and-tested-by: Mike Galbraith <efault@gmx.de> Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos

Diffstat (limited to 'tools/scripts')