msm-4.14: Disable some force-enabled debug options

This caused so much performance regressions in hackbench.

Change-Id: Ib72d4f4aca54ee00799809d4eb2fcb6cdb1f4971
Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>
Signed-off-by: Richard Raya <rdxzv.dev@gmail.com>

drivers/mmc/host/sdhci-msm.c

@@ -3008,8 +3008,10 @@ static void sdhci_msm_check_power_status(struct sdhci_host *host, u32 req_type)
 		init_completion(&msm_host->pwr_irq_completion);
 	else if (!wait_for_completion_timeout(&msm_host->pwr_irq_completion,
 				msecs_to_jiffies(MSM_PWR_IRQ_TIMEOUT_MS))) {
+#ifdef CONFIG_BUG
 		__WARN_printf("%s: request(%d) timed out waiting for pwr_irq\n",
 					mmc_hostname(host->mmc), req_type);
+#endif
 		MMC_TRACE(host->mmc,
 			"%s: request(%d) timed out waiting for pwr_irq\n",
 			__func__, req_type);

drivers/soc/qcom/msm-spm.c

@@ -367,7 +367,9 @@ void msm_spm_drv_flush_seq_entry(struct msm_spm_driver_data *dev)
 	int num_spm_entry = msm_spm_drv_get_num_spm_entry(dev);
 
 	if (!dev) {
+#ifdef CONFIG_BUG
 		__WARN();
+#endif
 		return;
 	}
 

init/Kconfig

@@ -1485,7 +1485,6 @@ config PRINTK_NMI
 
 config BUG
 	bool "BUG() support" if EXPERT
-	default y
 	help
           Disabling this option eliminates support for BUG and WARN, reducing
           the size of your kernel image and potentially quietly ignoring
@@ -1749,7 +1748,6 @@ config VM_EVENT_COUNTERS
 	  if VM event counters are disabled.
 
 config SLUB_DEBUG
-	default y
 	bool "Enable SLUB debugging support" if EXPERT
 	depends on SLUB && SYSFS
 	help

kernel/sched/walt.c

@@ -2106,7 +2106,9 @@ static struct sched_cluster *alloc_new_cluster(const struct cpumask *cpus)
 
 	cluster = kzalloc(sizeof(struct sched_cluster), GFP_ATOMIC);
 	if (!cluster) {
+#ifdef CONFIG_BUG
 		__WARN_printf("Cluster allocation failed. Possible bad scheduling\n");
+#endif
 		return NULL;
 	}
 

lib/Kconfig.debug

@@ -1022,7 +1022,6 @@ config PANIC_TIMEOUT
 config SCHED_DEBUG
 	bool "Collect scheduler debugging info"
 	depends on DEBUG_KERNEL && PROC_FS
-	default y
 	help
 	  If you say Y here, the /proc/sched_debug file will be provided
 	  that can help debug the scheduler. The runtime overhead of this
@@ -1101,7 +1100,6 @@ config DEBUG_TASK_STACK_SCAN_OFF
 config DEBUG_PREEMPT
 	bool "Debug preemptible kernel"
 	depends on DEBUG_KERNEL && PREEMPT && TRACE_IRQFLAGS_SUPPORT
-	default y
 	help
 	  If you say Y here then the kernel will use a debug variant of the
 	  commonly used smp_processor_id() function and will print warnings