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drm/nouveau/bios: require checksum to match for fast acpi shadow method
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
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@ -12,6 +12,7 @@ struct nvbios_source {
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bool rw;
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bool ignore_checksum;
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bool no_pcir;
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bool require_checksum;
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};
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int nvbios_extend(struct nvkm_bios *, u32 length);
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@ -86,9 +86,12 @@ shadow_image(struct nvkm_bios *bios, int idx, u32 offset, struct shadow *mthd)
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nvbios_checksum(&bios->data[image.base], image.size)) {
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nvkm_debug(subdev, "%08x: checksum failed\n",
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image.base);
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if (!mthd->func->require_checksum) {
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if (mthd->func->rw)
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score += 1;
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score += 1;
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} else
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return 0;
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} else {
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score += 3;
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}
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@ -99,6 +99,7 @@ nvbios_acpi_fast = {
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.init = acpi_init,
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.read = acpi_read_fast,
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.rw = false,
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.require_checksum = true,
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};
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const struct nvbios_source
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