linux-kernel - RE: [PATCH 1/5] Fix packed and aligned attribute warnings.

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Date:   Mon, 31 Jul 2017 13:27:47 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'SZ Lin' <sz.lin@...a.com>,
        "ashleydlai@...il.com" <ashleydlai@...il.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "jarkko.sakkinen@...ux.intel.com" <jarkko.sakkinen@...ux.intel.com>,
        "jgunthorpe@...idianresearch.com" <jgunthorpe@...idianresearch.com>,
        "tpmdd-devel@...ts.sourceforge.net" 
        <tpmdd-devel@...ts.sourceforge.net>,
        "paulus@...ba.org" <paulus@...ba.org>,
        "peterhuewe@....de" <peterhuewe@....de>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "tpmdd@...horst.ne" <tpmdd@...horst.ne>
Subject: RE: [PATCH 1/5] Fix packed and aligned attribute warnings.

From: SZ Lin
> Sent: 29 July 2017 08:24
...
> diff --git a/drivers/char/tpm/tpm_ibmvtpm.h b/drivers/char/tpm/tpm_ibmvtpm.h
> index 91dfe766d080..9f708ca3dc84 100644
> --- a/drivers/char/tpm/tpm_ibmvtpm.h
> +++ b/drivers/char/tpm/tpm_ibmvtpm.h
> @@ -25,7 +25,7 @@ struct ibmvtpm_crq {
>  	__be16 len;
>  	__be32 data;
>  	__be64 reserved;
> -} __attribute__((packed, aligned(8)));
> +} __packed __aligned(8);

You can't need __packed and __aligned(8) on that structure.
There are no gaps and you are saying it is always aligned.

So just remove the pointless attributes.

	David