linux-kernel - Re: [PATCH] KVM: selftests: Fix GUEST_PRINTF() format warnings in ARM code

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Message-ID: <ZcqEk16eBKovb-hb@linux.dev>
Date: Mon, 12 Feb 2024 20:50:27 +0000
From: Oliver Upton <oliver.upton@...ux.dev>
To: Sean Christopherson <seanjc@...gle.com>
Cc: Marc Zyngier <maz@...nel.org>, linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: selftests: Fix GUEST_PRINTF() format warnings in
 ARM code

+cc Anup

FYI -- this patch is touching the arch_timer code. I did a test merge
with kvm_riscv_queue and there weren't any conflicts, but in case that
changes this patch will appear on kvm-arm64/misc in my tree.

-- 
Thanks,
Oliver

On Fri, Feb 02, 2024 at 03:46:03PM -0800, Sean Christopherson wrote:
> Fix a pile of -Wformat warnings in the KVM ARM selftests code, almost all
> of which are benign "long" versus "long long" issues (selftests are 64-bit
> only, and the guest printf code treats "ll" the same as "l").  The code
> itself isn't problematic, but the warnings make it impossible to build ARM
> selftests with -Werror, which does detect real issues from time to time.
> 
> Opportunistically have GUEST_ASSERT_BITMAP_REG() interpret set_expected,
> which is a bool, as an unsigned decimal value, i.e. have it print '0' or
> '1' instead of '0x0' or '0x1'.
> 
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>