From: john.p.donnelly@oracle.com
To: Zhen Lei <thunder.leizhen@huawei.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, Dave Young <dyoung@redhat.com>,
Baoquan He <bhe@redhat.com>, Vivek Goyal <vgoyal@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
kexec@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
devicetree@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
linux-doc@vger.kernel.org
Cc: Randy Dunlap <rdunlap@infradead.org>,
Feng Zhou <zhoufeng.zf@bytedance.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
Chen Zhou <dingguo.cz@antgroup.com>
Subject: Re: [PATCH v19 04/13] kdump: reduce unnecessary parameters of parse_crashkernel_{high|low}()
Date: Tue, 11 Jan 2022 09:05:28 -0600 [thread overview]
Message-ID: <6dbf6d62-a860-4b69-5ea0-f540d52dbf43@oracle.com> (raw)
In-Reply-To: <20211228132612.1860-5-thunder.leizhen@huawei.com>
On 12/28/21 7:26 AM, Zhen Lei wrote:
> Delete confusing parameters 'system_ram' and 'crash_base' of
> parse_crashkernel_{high|low}(), they are only needed by the case of
> "crashkernel=X@[offset]".
>
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
>
Acked-by: John Donnelly <john.p.donnelly@oracle.com>
> ---
> kernel/crash_core.c | 21 ++++++++++-----------
> 1 file changed, 10 insertions(+), 11 deletions(-)
>
> diff --git a/kernel/crash_core.c b/kernel/crash_core.c
> index 3b9e01fc450b2a4..b7d024eb464d0ae 100644
> --- a/kernel/crash_core.c
> +++ b/kernel/crash_core.c
> @@ -278,20 +278,20 @@ int __init parse_crashkernel(char *cmdline,
> }
>
> static int __init parse_crashkernel_high(char *cmdline,
> - unsigned long long system_ram,
> - unsigned long long *crash_size,
> - unsigned long long *crash_base)
> + unsigned long long *crash_size)
> {
> - return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base,
> + unsigned long long base;
> +
> + return __parse_crashkernel(cmdline, 0, crash_size, &base,
> "crashkernel=", suffix_tbl[SUFFIX_HIGH]);
> }
>
> static int __init parse_crashkernel_low(char *cmdline,
> - unsigned long long system_ram,
> - unsigned long long *crash_size,
> - unsigned long long *crash_base)
> + unsigned long long *crash_size)
> {
> - return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base,
> + unsigned long long base;
> +
> + return __parse_crashkernel(cmdline, 0, crash_size, &base,
> "crashkernel=", suffix_tbl[SUFFIX_LOW]);
> }
>
> @@ -310,12 +310,11 @@ int __init parse_crashkernel_high_low(char *cmdline,
> unsigned long long *low_size)
> {
> int ret;
> - unsigned long long base;
>
> BUG_ON(!high_size || !low_size);
>
> /* crashkernel=X,high */
> - ret = parse_crashkernel_high(cmdline, 0, high_size, &base);
> + ret = parse_crashkernel_high(cmdline, high_size);
> if (ret)
> return ret;
>
> @@ -323,7 +322,7 @@ int __init parse_crashkernel_high_low(char *cmdline,
> return -EINVAL;
>
> /* crashkernel=Y,low */
> - ret = parse_crashkernel_low(cmdline, 0, low_size, &base);
> + ret = parse_crashkernel_low(cmdline, low_size);
> if (ret)
> *low_size = -1;
>
next prev parent reply other threads:[~2022-01-11 15:06 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-28 13:25 [PATCH v19 00/13] support reserving crashkernel above 4G on arm64 kdump Zhen Lei
2021-12-28 13:26 ` [PATCH v19 01/13] kdump: add helper parse_crashkernel_high_low() Zhen Lei
2021-12-30 10:14 ` Leizhen (ThunderTown)
2021-12-30 10:40 ` Borislav Petkov
2021-12-30 11:08 ` Leizhen (ThunderTown)
2021-12-31 9:22 ` Leizhen (ThunderTown)
2021-12-31 12:29 ` Leizhen (ThunderTown)
2022-01-11 15:03 ` john.p.donnelly
2021-12-28 13:26 ` [PATCH v19 02/13] x86/setup: Use parse_crashkernel_high_low() to simplify code Zhen Lei
2021-12-28 16:13 ` Borislav Petkov
2021-12-29 2:27 ` Leizhen (ThunderTown)
2021-12-29 7:27 ` Dave Young
2021-12-29 7:45 ` Dave Young
2021-12-29 10:11 ` Borislav Petkov
2021-12-29 10:38 ` Dave Young
2021-12-29 11:11 ` Borislav Petkov
2021-12-29 14:13 ` Leizhen (ThunderTown)
2021-12-29 10:03 ` Borislav Petkov
2021-12-29 10:46 ` Dave Young
2021-12-29 15:04 ` Leizhen (ThunderTown)
2021-12-29 16:51 ` Borislav Petkov
2021-12-30 2:39 ` Leizhen (ThunderTown)
2021-12-30 8:56 ` Leizhen (ThunderTown)
2021-12-29 12:19 ` Leizhen (ThunderTown)
2022-01-11 15:04 ` john.p.donnelly
2021-12-28 13:26 ` [PATCH v19 03/13] kdump: make parse_crashkernel_{high|low}() static Zhen Lei
2022-01-11 15:04 ` john.p.donnelly
2021-12-28 13:26 ` [PATCH v19 04/13] kdump: reduce unnecessary parameters of parse_crashkernel_{high|low}() Zhen Lei
2022-01-11 15:05 ` john.p.donnelly [this message]
2021-12-28 13:26 ` [PATCH v19 05/13] x86/setup: Add and use CRASH_BASE_ALIGN Zhen Lei
2022-01-11 15:06 ` john.p.donnelly
2021-12-28 13:26 ` [PATCH v19 06/13] kexec: move crashk[_low]_res to crash_core module Zhen Lei
2022-01-11 15:06 ` john.p.donnelly
2021-12-28 13:26 ` [PATCH v19 07/13] kdump: Add helper reserve_crashkernel_mem[_low]() Zhen Lei
2021-12-28 13:26 ` [PATCH v19 08/13] x86/setup: Move CRASH[_BASE]_ALIGN and CRASH_ADDR_{LOW|HIGH}_MAX to asm/kexec.h Zhen Lei
2021-12-28 13:26 ` [PATCH v19 09/13] x86/setup: Use generic reserve_crashkernel_mem[_low]() Zhen Lei
2021-12-28 13:26 ` [PATCH v19 10/13] arm64: kdump: introduce some macros for crash kernel reservation Zhen Lei
2021-12-28 13:26 ` [PATCH v19 11/13] arm64: kdump: reimplement crashkernel=X Zhen Lei
2022-01-12 14:45 ` Dave Kleikamp
2022-01-13 1:17 ` Leizhen (ThunderTown)
2021-12-28 13:26 ` [PATCH v19 12/13] of: fdt: Add memory for devices by DT property "linux,usable-memory-range" Zhen Lei
2021-12-28 13:26 ` [PATCH v19 13/13] kdump: update Documentation about crashkernel Zhen Lei
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