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x86/mm: Unbreak modules that use the DMA API
Commitd8aa7eea78
("x86/mm: Add Secure Encrypted Virtualization (SEV) support") changed sme_active() from an inline function that referenced sme_me_mask to a non-inlined function in order to make the sev_enabled variable a static variable. This function was marked EXPORT_SYMBOL_GPL because at the time the patch was submitted, sme_me_mask was marked EXPORT_SYMBOL_GPL. Commit87df26175e
("x86/mm: Unbreak modules that rely on external PAGE_KERNEL availability") changed sme_me_mask variable from EXPORT_SYMBOL_GPL to EXPORT_SYMBOL, allowing external modules the ability to build with CONFIG_AMD_MEM_ENCRYPT=y. Now, however, with sev_active() no longer an inline function and marked as EXPORT_SYMBOL_GPL, external modules that use the DMA API are once again broken in 4.15. Since the DMA API is meant to be used by external modules, this needs to be changed. Change the sme_active() and sev_active() functions from EXPORT_SYMBOL_GPL to EXPORT_SYMBOL. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brijesh Singh <brijesh.singh@amd.com> Link: https://lkml.kernel.org/r/20171215162011.14125.7113.stgit@tlendack-t1.amdoffice.net
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1 changed files with 2 additions and 2 deletions
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@ -405,13 +405,13 @@ bool sme_active(void)
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{
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{
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return sme_me_mask && !sev_enabled;
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return sme_me_mask && !sev_enabled;
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}
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}
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EXPORT_SYMBOL_GPL(sme_active);
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EXPORT_SYMBOL(sme_active);
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bool sev_active(void)
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bool sev_active(void)
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{
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{
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return sme_me_mask && sev_enabled;
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return sme_me_mask && sev_enabled;
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}
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}
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EXPORT_SYMBOL_GPL(sev_active);
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EXPORT_SYMBOL(sev_active);
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static const struct dma_map_ops sev_dma_ops = {
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static const struct dma_map_ops sev_dma_ops = {
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.alloc = sev_alloc,
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.alloc = sev_alloc,
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