From: Ashok Raj <ashok.raj@intel.com>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>, X86-kernel <x86@kernel.org>,
LKML Mailing List <linux-kernel@vger.kernel.org>,
Tony Luck <tony.luck@intel.com>, Ingo Molnar <mingo@kernel.org>,
<alison.schofield@intel.com>, <reinette.chatre@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
"Ashok Raj" <ashok.raj@intel.com>
Subject: Re: [PATCH v4 6/6] x86/microcode/intel: Print when early microcode loading fails
Date: Tue, 17 Jan 2023 09:59:44 -0800 [thread overview]
Message-ID: <Y8biEJErijXiGeXb@a4bf019067fa.jf.intel.com> (raw)
In-Reply-To: <f7ca6ffb-d623-a22e-da5e-d0acdd3ad672@intel.com>
On Tue, Jan 17, 2023 at 08:35:33AM -0800, Dave Hansen wrote:
> On 1/9/23 07:35, Ashok Raj wrote:
> > -static void print_ucode(int old_rev, int new_rev, int date)
> > +static void print_ucode(bool failed, int old_rev, int new_rev, int date)
> ...
> > if (rev != mc->hdr.rev)
> > - return -1;
> > + retval = -1;
> >
> > uci->cpu_sig.rev = rev;
> >
> > if (early)
> > - print_ucode(old_rev, uci->cpu_sig.rev, mc->hdr.date);
> > + print_ucode(retval, old_rev, mc->hdr.rev, mc->hdr.date);
> > else
> > - print_ucode_info(old_rev, uci->cpu_sig.rev, mc->hdr.date);
> > + print_ucode_info(retval, old_rev, uci->cpu_sig.rev, mc->hdr.date);
> >
> > - return 0;
> > + return retval;
> > }
>
> I'm generally not a _huge_ fan of having an 'int' implicitly cast to a
> bool. The:
>
> print_ucode_info(retval, ...
>
> Line could be right or wrong based on what the retval is logically.
> This, on the other hand:
>
> bool failed = false;
> ...
> if (rev != mc->hdr.rev) {
> retval = -1;
> failed = true;
> }
> ...
> print_ucode_info(failed, old_rev, uci->cpu_sig.rev, ...
>
> *Clearly* and unambiguously matches up with:
>
> static void print_ucode(bool failed, int old_rev, ...
Yes, it makes good sense.. I'll fix up next update including the commit log
that you called out.
prev parent reply other threads:[~2023-01-17 18:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-09 15:35 [PATCH v4 0/6] Some fixes and cleanups for microcode Ashok Raj
2023-01-09 15:35 ` [PATCH v4 1/6] x86/microcode: Add a parameter to microcode_check() to store CPU capabilities Ashok Raj
2023-01-21 14:54 ` [tip: x86/microcode] " tip-bot2 for Ashok Raj
2023-01-09 15:35 ` [PATCH v4 2/6] x86/microcode/core: Take a snapshot before and after applying microcode Ashok Raj
2023-01-21 14:54 ` [tip: x86/microcode] x86/microcode: Check CPU capabilities after late microcode update correctly tip-bot2 for Ashok Raj
2023-01-09 15:35 ` [PATCH v4 3/6] x86/microcode: Display revisions only when update is successful Ashok Raj
2023-01-09 15:35 ` [PATCH v4 4/6] x86/microcode/intel: Use a plain revision argument for print_ucode_rev() Ashok Raj
2023-01-15 19:25 ` Borislav Petkov
2023-01-15 19:39 ` Borislav Petkov
2023-01-17 16:05 ` Ashok Raj
2023-01-17 18:16 ` Borislav Petkov
2023-01-09 15:35 ` [PATCH v4 5/6] x86/microcode/intel: Print old and new rev during early boot Ashok Raj
2023-01-09 15:35 ` [PATCH v4 6/6] x86/microcode/intel: Print when early microcode loading fails Ashok Raj
2023-01-15 19:05 ` Borislav Petkov
2023-01-17 16:12 ` Ashok Raj
2023-01-17 16:29 ` Dave Hansen
2023-01-17 18:21 ` Borislav Petkov
2023-01-17 18:32 ` Dave Hansen
2023-01-17 18:40 ` Borislav Petkov
2023-01-17 20:40 ` Ashok Raj
2023-01-17 20:58 ` Luck, Tony
2023-01-19 17:59 ` Ashok Raj
2023-01-20 12:03 ` Borislav Petkov
2023-01-20 16:52 ` Ashok Raj
2023-01-17 21:00 ` Dave Hansen
2023-01-17 21:06 ` Borislav Petkov
2023-01-17 21:34 ` Ashok Raj
2023-01-17 19:10 ` Ashok Raj
2023-01-17 16:35 ` Dave Hansen
2023-01-17 17:59 ` Ashok Raj [this message]
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