From fc8b13740b2978b34872650cc8e928392e3758aa Mon Sep 17 00:00:00 2001 From: Mike Travis Date: Tue, 14 Jan 2014 10:25:52 -0600 Subject: kgdb/kdb: Fix no KDB config problem Some code added to the debug_core module had KDB dependencies that it shouldn't have. Move the KDB dependent REASON back to the caller to remove the dependency in the debug core code. Update the call from the UV NMI handler to conform to the new interface. Signed-off-by: Mike Travis Reviewed-by: Hedi Berriche Cc: Russ Anderson Cc: Jason Wessel Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Link: http://lkml.kernel.org/r/20140114162551.318251993@asylum.americas.sgi.com Signed-off-by: Ingo Molnar --- arch/x86/platform/uv/uv_nmi.c | 2 +- include/linux/kgdb.h | 3 ++- kernel/debug/debug_core.c | 5 +++-- kernel/debug/debug_core.h | 2 -- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c index 8eeccba73130..7486c21cbf0a 100644 --- a/arch/x86/platform/uv/uv_nmi.c +++ b/arch/x86/platform/uv/uv_nmi.c @@ -546,7 +546,7 @@ static void uv_call_kdb(int cpu, struct pt_regs *regs, int master) if (master) { /* call KGDB NMI handler as MASTER */ ret = kgdb_nmicallin(cpu, X86_TRAP_NMI, regs, - &uv_nmi_slave_continue); + KDB_REASON_SYSTEM_NMI, &uv_nmi_slave_continue); if (ret) { pr_alert("KDB returned error, is kgdboc set?\n"); atomic_set(&uv_nmi_slave_continue, SLAVE_EXIT); diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h index dfb4f2ffdaa2..6b06d378f3df 100644 --- a/include/linux/kgdb.h +++ b/include/linux/kgdb.h @@ -310,7 +310,8 @@ extern int kgdb_handle_exception(int ex_vector, int signo, int err_code, struct pt_regs *regs); extern int kgdb_nmicallback(int cpu, void *regs); -extern int kgdb_nmicallin(int cpu, int trapnr, void *regs, atomic_t *snd_rdy); +extern int kgdb_nmicallin(int cpu, int trapnr, void *regs, int err_code, + atomic_t *snd_rdy); extern void gdbstub_exit(int status); extern int kgdb_single_step; diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index 7d2f35e5df2f..334b3980ffc1 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -736,7 +736,8 @@ int kgdb_nmicallback(int cpu, void *regs) return 1; } -int kgdb_nmicallin(int cpu, int trapnr, void *regs, atomic_t *send_ready) +int kgdb_nmicallin(int cpu, int trapnr, void *regs, int err_code, + atomic_t *send_ready) { #ifdef CONFIG_SMP if (!kgdb_io_ready(0) || !send_ready) @@ -750,7 +751,7 @@ int kgdb_nmicallin(int cpu, int trapnr, void *regs, atomic_t *send_ready) ks->cpu = cpu; ks->ex_vector = trapnr; ks->signo = SIGTRAP; - ks->err_code = KGDB_KDB_REASON_SYSTEM_NMI; + ks->err_code = err_code; ks->linux_regs = regs; ks->send_ready = send_ready; kgdb_cpu_enter(ks, regs, DCPU_WANT_MASTER); diff --git a/kernel/debug/debug_core.h b/kernel/debug/debug_core.h index 572aa4f5677c..127d9bc49fb4 100644 --- a/kernel/debug/debug_core.h +++ b/kernel/debug/debug_core.h @@ -75,13 +75,11 @@ extern int kdb_stub(struct kgdb_state *ks); extern int kdb_parse(const char *cmdstr); extern int kdb_common_init_state(struct kgdb_state *ks); extern int kdb_common_deinit_state(void); -#define KGDB_KDB_REASON_SYSTEM_NMI KDB_REASON_SYSTEM_NMI #else /* ! CONFIG_KGDB_KDB */ static inline int kdb_stub(struct kgdb_state *ks) { return DBG_PASS_EVENT; } -#define KGDB_KDB_REASON_SYSTEM_NMI 0 #endif /* CONFIG_KGDB_KDB */ #endif /* _DEBUG_CORE_H_ */ -- cgit v1.2.3