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Message-ID: <alpine.LFD.0.9999.0711141055050.3265@localhost.localdomain>
Date: Wed, 14 Nov 2007 11:54:50 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: Joe Perches <joe@...ches.com>
cc: linux-kernel <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] - [12/15] - remove defconfig ptr comparisons to 0 -
include/asm-x86
Joe,
can you please CC the relevant maintainers on patches ?
On Tue, 13 Nov 2007, Joe Perches wrote:
> Remove defconfig ptr comparison to 0
>
> The memcpy from memory location 0 sure looks odd.
The memcpy from 0 is completely bogus.
I bet this should have been a memset(&header, 0, ....), which is not
necessary at all, when the return value of acpi_get_table_header()
would be evaluated.
/me wonders why this never exploded
tglx
> Remove sparse warning: Using plain integer as NULL pointer
>
> Signed-off-by: Joe Perches <joe@...ches.com>
>
> ---
>
> diff --git a/include/asm-x86/mach-es7000/mach_mpparse.h b/include/asm-x86/mach-es7000/mach_mpparse.h
> index 8aa1054..a1dd66f 100644
> --- a/include/asm-x86/mach-es7000/mach_mpparse.h
> +++ b/include/asm-x86/mach-es7000/mach_mpparse.h
> @@ -29,7 +29,7 @@ extern int mps_oem_check(struct mp_config_table *mpc, char *oem,
> static inline int es7000_check_dsdt(void)
> {
> struct acpi_table_header header;
> - memcpy(&header, 0, sizeof(struct acpi_table_header));
> + memcpy(&header, (void *)0, sizeof(struct acpi_table_header));
> acpi_get_table_header(ACPI_SIG_DSDT, 0, &header);
> if (!strncmp(header.oem_id, "UNISYS", 6))
> return 1;
>
>
> -
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