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s390/cio,idal: remove superfluous virt_to_phys() conversion
Only the last 12 bits of virtual / physical addresses are used when masking with IDA_BLOCK_SIZE - 1. Given that the bits are the same regardless of virtual or physical address, remove the virtual to physical address conversion. Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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57bc3c2219
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0c9580cebb
1 changed files with 2 additions and 2 deletions
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@ -41,7 +41,7 @@ static inline unsigned int idal_nr_words(void *vaddr, unsigned int length)
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{
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unsigned int cidaw;
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cidaw = __pa(vaddr) & (IDA_BLOCK_SIZE - 1);
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cidaw = (unsigned long)vaddr & (IDA_BLOCK_SIZE - 1);
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cidaw += length + IDA_BLOCK_SIZE - 1;
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cidaw >>= IDA_SIZE_SHIFT;
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return cidaw;
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@ -54,7 +54,7 @@ static inline unsigned int idal_2k_nr_words(void *vaddr, unsigned int length)
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{
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unsigned int cidaw;
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cidaw = __pa(vaddr) & (IDA_2K_BLOCK_SIZE - 1);
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cidaw = (unsigned long)vaddr & (IDA_2K_BLOCK_SIZE - 1);
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cidaw += length + IDA_2K_BLOCK_SIZE - 1;
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cidaw >>= IDA_2K_SIZE_SHIFT;
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return cidaw;
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