Messages in this thread Patch in this message | | | Subject | [PATCH -tip] x86: cpu_debug.c prepare report if files are inappropriate or CPU is not supported | From | Jaswinder Singh Rajput <> | Date | Tue, 14 Apr 2009 21:37:20 +0530 |
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This will prepare the report to update cpu_debug. If files are inappropriate or CPU is not supported.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> --- arch/x86/kernel/cpu/cpu_debug.c | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/cpu/cpu_debug.c b/arch/x86/kernel/cpu/cpu_debug.c index 46e29ab..33fde75 100644 --- a/arch/x86/kernel/cpu/cpu_debug.c +++ b/arch/x86/kernel/cpu/cpu_debug.c @@ -30,6 +30,8 @@ #include <asm/apic.h> #include <asm/desc.h> +#define EMAIL "<linux-kernel@vger.kernel.org>, <jaswinderrajput@gmail.com>" + static DEFINE_PER_CPU(struct cpu_cpuX_base, cpu_arr[CPU_REG_ALL_BIT]); static DEFINE_PER_CPU(struct cpu_private *, priv_arr[MAX_CPU_FILES]); static DEFINE_PER_CPU(unsigned, cpu_modelflag); @@ -838,6 +840,17 @@ static int cpu_init_allreg(unsigned cpu, struct dentry *dentry) return err; } +/* + * Prepare report for LKML and maintainer if files count are inappropriate + * Or CPU is not supported + */ +static void send_report(int files, struct cpuinfo_x86 *cpui) +{ + WARN_ONCE(1, "Please report \"cpu_debug files %d for %x:%x:%x:%x\" to" + " %s\n", files, cpui->x86_vendor, cpui->x86, cpui->x86_model, + cpui->x86_mask, EMAIL); +} + static int cpu_init_cpu(void) { struct dentry *cpu_dentry = NULL; @@ -861,9 +874,13 @@ static int cpu_init_cpu(void) pr_info("cpu%d(%d) debug files %d\n", cpu, nr_cpu_ids, per_cpu(cpu_priv_count, cpu)); + if (!per_cpu(cpu_modelflag, cpu)) + send_report(per_cpu(cpu_priv_count, cpu), cpui); + if (per_cpu(cpu_priv_count, cpu) > MAX_CPU_FILES) { pr_err("Register files count %d exceeds limit %d\n", per_cpu(cpu_priv_count, cpu), MAX_CPU_FILES); + send_report(per_cpu(cpu_priv_count, cpu), cpui); per_cpu(cpu_priv_count, cpu) = MAX_CPU_FILES; err = -ENFILE; } -- 1.6.0.6
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