diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-29 07:49:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-29 07:49:10 -0700 |
| commit | 20dc9f01a867318ac0bc3ea9185d71f05076aeb0 (patch) | |
| tree | f8e9528f1fd926b9f7fba9618b602d711cbfcaa8 /include/linux | |
| parent | 93400708dba888d45b4da01e1753a3a743f44496 (diff) | |
| parent | e1efa2a3ea266e093f690c20af7522d95540f74f (diff) | |
Merge branch 'sg' of git://git.kernel.dk/linux-2.6-block
* 'sg' of git://git.kernel.dk/linux-2.6-block:
Correction of "Update drivers to use sg helpers" patch for IMXMMC driver
sg_init_table() should use unsigned loop index variable
sg_last() should use unsigned loop index variable
Initialise scatter/gather list in sg driver
Initialise scatter/gather list in ata_sg_setup
x86: fix pci-gart failure handling
SG: s390-scsi: missing size parameter in zfcp_address_to_sg()
SG: clear termination bit in sg_chain()
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/scatterlist.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index 45712317138..32326c293d7 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -150,7 +150,7 @@ static inline struct scatterlist *sg_last(struct scatterlist *sgl, struct scatterlist *ret = &sgl[nents - 1]; #else struct scatterlist *sg, *ret = NULL; - int i; + unsigned int i; for_each_sg(sgl, sg, nents, i) ret = sg; @@ -179,7 +179,11 @@ static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents, #ifndef ARCH_HAS_SG_CHAIN BUG(); #endif - prv[prv_nents - 1].page_link = (unsigned long) sgl | 0x01; + /* + * Set lowest bit to indicate a link pointer, and make sure to clear + * the termination bit if it happens to be set. + */ + prv[prv_nents - 1].page_link = ((unsigned long) sgl | 0x01) & ~0x02; } /** @@ -239,7 +243,7 @@ static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents) sg_mark_end(sgl, nents); #ifdef CONFIG_DEBUG_SG { - int i; + unsigned int i; for (i = 0; i < nents; i++) sgl[i].sg_magic = SG_MAGIC; } |