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From: Conor Dooley <conor.dooley@microchip.com>
To: <palmer@dabbelt.com>
Cc: conor@kernel.org, conor.dooley@microchip.com,
	Paul Walmsley <paul.walmsley@sifive.com>,
	linux-riscv@lists.infradead.org,
	Andrew Jones <ajones@ventanamicro.com>
Subject: [PATCH v1] RISC-V: drop error print from riscv_hartid_to_cpuid()
Date: Thu, 29 Jun 2023 12:33:34 +0100	[thread overview]
Message-ID: <20230629-paternity-grafted-b901b76d04a0@wendy> (raw)

As of commit 2ac874343749 ("RISC-V: split early & late of_node to
hartid mapping") my CI complains about newly added pr_err() messages
during boot, for example:
[    0.000000] Couldn't find cpu id for hartid [0]
[    0.000000] riscv-intc: unable to find hart id for /cpus/cpu@0/interrupt-controller

Before the split, riscv_of_processor_hartid() contained a check for
whether the cpu was "available", before calling riscv_hartid_to_cpuid(),
but after the split riscv_of_processor_hartid() can be called for cpus
that are disabled.

Most callers of riscv_hartid_to_cpuid() already report custom errors
where it falls, making this print superfluous in those case. In other
places, the print adds nothing - see riscv_intc_init() for example.

Fixes: 2ac874343749 ("RISC-V: split early & late of_node to hartid mapping")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
Sunil, the acpi user of this function I was unclear about. Could you
please take a look and see if disabling this print is okay there, or if I
should add a localised error print on failure?

CC: Sunil V L <sunilvl@ventanamicro.com>
CC: Andrew Jones <ajones@ventanamicro.com>
CC: Paul Walmsley <paul.walmsley@sifive.com>
CC: Palmer Dabbelt <palmer@dabbelt.com>
CC: linux-riscv@lists.infradead.org
---
 arch/riscv/kernel/smp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
index 23e533766a49..85bbce0f758c 100644
--- a/arch/riscv/kernel/smp.c
+++ b/arch/riscv/kernel/smp.c
@@ -58,7 +58,6 @@ int riscv_hartid_to_cpuid(unsigned long hartid)
 		if (cpuid_to_hartid_map(i) == hartid)
 			return i;
 
-	pr_err("Couldn't find cpu id for hartid [%lu]\n", hartid);
 	return -ENOENT;
 }
 
-- 
2.40.1


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             reply	other threads:[~2023-06-29 11:34 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-29 11:33 Conor Dooley [this message]
2023-07-05 23:38 ` [PATCH v1] RISC-V: drop error print from riscv_hartid_to_cpuid() Palmer Dabbelt
2023-07-05 23:50 ` patchwork-bot+linux-riscv

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