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From: Paolo Bonzini <pbonzini@redhat.com>
To: Bill Wendling <morbo@google.com>, kvm@vger.kernel.org
Cc: oupton@google.com, drjones@redhat.com
Subject: Re: [kvm-unit-tests PATCH 2/7] pci: use uint32_t for unsigned long values
Date: Fri, 28 Feb 2020 12:04:38 +0100	[thread overview]
Message-ID: <91b0fdf5-a948-ef61-8b05-1c5757937521@redhat.com> (raw)
In-Reply-To: <20200226094433.210968-4-morbo@google.com>

On 26/02/20 10:44, Bill Wendling wrote:
> The "pci_bar_*" functions use 64-bit masks, but the results are assigned
> to 32-bit variables. Use 32-bit masks, since we're interested only in
> the least significant 4-bits.
> 
> Signed-off-by: Bill Wendling <morbo@google.com>
> ---
>  lib/linux/pci_regs.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/linux/pci_regs.h b/lib/linux/pci_regs.h
> index 1becea8..3bc2b92 100644
> --- a/lib/linux/pci_regs.h
> +++ b/lib/linux/pci_regs.h
> @@ -96,8 +96,8 @@
>  #define  PCI_BASE_ADDRESS_MEM_TYPE_1M	0x02	/* Below 1M [obsolete] */
>  #define  PCI_BASE_ADDRESS_MEM_TYPE_64	0x04	/* 64 bit address */
>  #define  PCI_BASE_ADDRESS_MEM_PREFETCH	0x08	/* prefetchable? */
> -#define  PCI_BASE_ADDRESS_MEM_MASK	(~0x0fUL)
> -#define  PCI_BASE_ADDRESS_IO_MASK	(~0x03UL)
> +#define  PCI_BASE_ADDRESS_MEM_MASK	(~0x0fU)
> +#define  PCI_BASE_ADDRESS_IO_MASK	(~0x03U)
>  /* bit 1 is reserved if address_space = 1 */
>  
>  /* Header type 0 (normal devices) */
> 

Removing the "U" is even better because it will then sign-extend
automatically.

Paolo


  reply	other threads:[~2020-02-28 11:04 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-26  7:44 [kvm-unit-tests PATCH 0/7] Fixes for clang builds morbo
2020-02-26  7:44 ` [kvm-unit-tests PATCH 1/7] x86: emulator: use "SSE2" for the target morbo
2020-02-26  7:44 ` [kvm-unit-tests PATCH 2/7] pci: use uint32_t for unsigned long values morbo
2020-02-26  7:59   ` Andrew Jones
2020-02-26  9:02     ` Bill Wendling
2020-02-26  9:24       ` Andrew Jones
2020-02-26  7:44 ` [kvm-unit-tests PATCH 3/7] x86: realmode: syscall: add explicit size suffix to ambiguous instructions morbo
2020-02-26  7:44 ` [kvm-unit-tests PATCH 4/7] svm: change operand to output-only for matching constraint morbo
2020-02-26  7:44 ` [kvm-unit-tests PATCH 5/7] svm: convert neg shift to unsigned shift morbo
2020-02-26  7:44 ` [kvm-unit-tests PATCH 6/7] x86: VMX: use inline asm to get stack pointer morbo
2020-02-26  7:44 ` [kvm-unit-tests PATCH 7/7] x86: VMX: the "noclone" attribute is gcc-specific morbo
2020-02-26  8:21   ` Oliver Upton
2020-02-26  8:22     ` Oliver Upton
2020-02-26  9:44 ` [kvm-unit-tests PATCH v2 0/7] Fixes for clang builds Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH 1/7] x86: emulator: use "SSE2" for the target Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH v2 1/7] x86: pmu: Test WRMSR on a running counter Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH 2/7] pci: use uint32_t for unsigned long values Bill Wendling
2020-02-28 11:04     ` Paolo Bonzini [this message]
2020-02-28 12:46       ` Andrew Jones
2020-02-28 13:02         ` Paolo Bonzini
2020-02-26  9:44   ` [kvm-unit-tests PATCH v2 2/7] x86: provide enabled and disabled variation of the PCID test Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH v2 3/7] x86: pmu: Test perfctr overflow after WRMSR on a running counter Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH 3/7] x86: realmode: syscall: add explicit size suffix to ambiguous instructions Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH 4/7] svm: change operand to output-only for matching constraint Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH v2 4/7] vmx: tweak XFAILS for #DB test Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH 5/7] svm: convert neg shift to unsigned shift Bill Wendling
2020-02-28 11:12     ` Paolo Bonzini
2020-02-26  9:44   ` [kvm-unit-tests PATCH v2 5/7] x86: VMX: Add tests for monitor trap flag Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH v2 6/7] x86: emulator: use "SSE2" for the target Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH 6/7] x86: VMX: use inline asm to get stack pointer Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH v2 7/7] pci: cast masks to uint32_t for unsigned long values Bill Wendling
2020-02-26  9:44   ` [kvm-unit-tests PATCH 7/7] x86: VMX: the "noclone" attribute is gcc-specific Bill Wendling
2020-02-28 11:16     ` Paolo Bonzini
2020-02-28 18:19       ` Oliver Upton
2020-02-28 18:24         ` Paolo Bonzini
2020-02-28 18:40           ` Oliver Upton
2020-02-26 19:02   ` [kvm-unit-tests PATCH v2 0/7] Fixes for clang builds Oliver Upton
2020-02-26 20:12   ` [kvm-unit-tests PATCH v3 " Bill Wendling
2020-02-26 20:12     ` [kvm-unit-tests PATCH v3 1/7] x86: emulator: use "SSE2" for the target Bill Wendling
2020-02-26 20:12     ` [kvm-unit-tests PATCH v3 2/7] pci: cast masks to uint32_t for unsigned long values Bill Wendling
2020-02-26 20:12     ` [kvm-unit-tests PATCH v3 3/7] x86: realmode: syscall: add explicit size suffix to ambiguous instructions Bill Wendling
2020-02-26 20:12     ` [kvm-unit-tests PATCH v3 4/7] svm: change operand to output-only for matching constraint Bill Wendling
2020-02-26 20:12     ` [kvm-unit-tests PATCH v3 5/7] svm: convert neg shift to unsigned shift Bill Wendling
2020-02-26 20:12     ` [kvm-unit-tests PATCH v3 6/7] x86: VMX: use inline asm to get stack pointer Bill Wendling
2020-02-26 20:12     ` [kvm-unit-tests PATCH v3 7/7] x86: VMX: the "noclone" attribute is gcc-specific Bill Wendling
2020-02-27  2:05       ` Oliver Upton
2020-02-28 11:19   ` [kvm-unit-tests PATCH v2 0/7] Fixes for clang builds Paolo Bonzini

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