Patch "parisc: Fix /proc/cpuinfo output for lscpu" has been added to the 5.10-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    parisc: Fix /proc/cpuinfo output for lscpu

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     parisc-fix-proc-cpuinfo-output-for-lscpu.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 9f5ba4b3e1b3c123eeca5d2d09161e8720048b5c Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Fri, 18 Aug 2023 22:48:04 +0200
Subject: parisc: Fix /proc/cpuinfo output for lscpu

From: Helge Deller <deller@xxxxxx>

commit 9f5ba4b3e1b3c123eeca5d2d09161e8720048b5c upstream.

The lscpu command is broken since commit cab56b51ec0e ("parisc: Fix
device names in /proc/iomem") added the PA pathname to all PA
devices, includig the CPUs.

lscpu parses /proc/cpuinfo and now believes it found different CPU
types since every CPU is listed with an unique identifier (PA
pathname).

Fix this problem by simply dropping the PA pathname when listing the
CPUs in /proc/cpuinfo. There is no need to show the pathname in this
procfs file.

Fixes: cab56b51ec0e ("parisc: Fix device names in /proc/iomem")
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v4.9+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/parisc/kernel/processor.c |   13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -373,10 +373,18 @@ int
 show_cpuinfo (struct seq_file *m, void *v)
 {
 	unsigned long cpu;
+	char cpu_name[60], *p;
+
+	/* strip PA path from CPU name to not confuse lscpu */
+	strlcpy(cpu_name, per_cpu(cpu_data, 0).dev->name, sizeof(cpu_name));
+	p = strrchr(cpu_name, '[');
+	if (p)
+		*(--p) = 0;
 
 	for_each_online_cpu(cpu) {
-		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
 #ifdef CONFIG_SMP
+		const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
+
 		if (0 == cpuinfo->hpa)
 			continue;
 #endif
@@ -421,8 +429,7 @@ show_cpuinfo (struct seq_file *m, void *
 
 		seq_printf(m, "model\t\t: %s - %s\n",
 				 boot_cpu_data.pdc.sys_model_name,
-				 cpuinfo->dev ?
-				 cpuinfo->dev->name : "Unknown");
+				 cpu_name);
 
 		seq_printf(m, "hversion\t: 0x%08x\n"
 			        "sversion\t: 0x%08x\n",


Patches currently in stable-queue which might be from deller@xxxxxx are

queue-5.10/parisc-fix-proc-cpuinfo-output-for-lscpu.patch



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux