[x86 setup] video setup: Fix VBE DDC reading

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Add memory operand constraint and write-only modifier to the inline
assembly to effect the writing of the EDID block to boot_params.edid_info.

Without this, gcc would think the EDID query was dead code and would
eliminate it.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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Antonino A. Daplas 2007-08-02 18:16:46 +08:00 • committed by H. Peter Anvin

parent 1ed4395035

commit 59acc08fd9

1 changed files with 1 additions and 1 deletions

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arch/i386/boot/video-vesa.c

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