linux-kernel - [RESENT PATCH] arm64: cpuinfo: Add "model name" in /proc/cpuinfo for 64bit tasks also

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Date:   Tue,  2 Feb 2021 07:58:09 +0800
From:   Tianling Shen <cnsztl@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Sumit Gupta <sumitg@...dia.com>, Tianling Shen <cnsztl@...il.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Dave Martin <Dave.Martin@....com>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [RESENT PATCH] arm64: cpuinfo: Add "model name" in /proc/cpuinfo for 64bit tasks also

From: Sumit Gupta <sumitg@...dia.com>

Removed restriction of displaying model name for 32 bit tasks only.
This can be used for 64 bit tasks as well, and it's useful for some
tools that already parse this, such as coreutils `uname -p`, Ubuntu
model name display etc.

It should be like this:
```
$ cat '/proc/cpuinfo' | grep 'model name' | head -n 1
model name : ARMv8 Processor rev X (v8l)
```

Link: https://lore.kernel.org/lkml/1472461345-28219-1-git-send-email-sumitg@nvidia.com/

Signed-off-by: Sumit Gupta <sumitg@...dia.com>
Signed-off-by: Tianling Shen <cnsztl@...il.com>
---
 arch/arm64/kernel/cpuinfo.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 77605aec25fe..d69b4e486098 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -148,8 +148,7 @@ static int c_show(struct seq_file *m, void *v)
 		 * "processor".  Give glibc what it expects.
 		 */
 		seq_printf(m, "processor\t: %d\n", i);
-		if (compat)
-			seq_printf(m, "model name\t: ARMv8 Processor rev %d (%s)\n",
+		seq_printf(m, "model name\t: ARMv8 Processor rev %d (%s)\n",
 				   MIDR_REVISION(midr), COMPAT_ELF_PLATFORM);
 
 		seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
-- 
2.17.1