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The patch below makes it again possible to build SCST against the 2.6.23

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or before kernel headers and also suppresses several compiler warnings
about possibly uninitialized variables.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2129 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2010-09-15 18:00:17 +00:00
parent 35dc0e55f2
commit 669c380211
1 changed files with 19 additions and 3 deletions
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scst/include/scst.h
+19 -3
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@@ -3323,6 +3323,16 @@ void scst_aen_done(struct scst_aen *aen);
#ifndef __BACKPORT_LINUX_SCATTERLIST_H_TO_2_6_23__ #ifndef __BACKPORT_LINUX_SCATTERLIST_H_TO_2_6_23__
static inline bool sg_is_chain(struct scatterlist *sg)
{
return false;
}
static inline struct scatterlist *sg_chain_ptr(struct scatterlist *sg)
{
return NULL;
}
static inline struct page *sg_page(struct scatterlist *sg) static inline struct page *sg_page(struct scatterlist *sg)
{ {
return sg->page; return sg->page;
@@ -3413,8 +3423,10 @@ out:
static inline int scst_get_buf_first(struct scst_cmd *cmd, uint8_t **buf) static inline int scst_get_buf_first(struct scst_cmd *cmd, uint8_t **buf)
{ {
if (unlikely(cmd->sg == NULL)) if (unlikely(cmd->sg == NULL)) {
*buf = NULL;
return 0; return 0;
}
cmd->get_sg_buf_entry_num = 0; cmd->get_sg_buf_entry_num = 0;
cmd->get_sg_buf_cur_sg_entry = cmd->sg; cmd->get_sg_buf_cur_sg_entry = cmd->sg;
cmd->may_need_dma_sync = 1; cmd->may_need_dma_sync = 1;
@@ -3433,8 +3445,10 @@ static inline void scst_put_buf(struct scst_cmd *cmd, void *buf)
static inline int scst_get_out_buf_first(struct scst_cmd *cmd, uint8_t **buf) static inline int scst_get_out_buf_first(struct scst_cmd *cmd, uint8_t **buf)
{ {
if (unlikely(cmd->out_sg == NULL)) if (unlikely(cmd->out_sg == NULL)) {
*buf = NULL;
return 0; return 0;
}
cmd->get_sg_buf_entry_num = 0; cmd->get_sg_buf_entry_num = 0;
cmd->get_sg_buf_cur_sg_entry = cmd->out_sg; cmd->get_sg_buf_cur_sg_entry = cmd->out_sg;
cmd->may_need_dma_sync = 1; cmd->may_need_dma_sync = 1;
@@ -3454,8 +3468,10 @@ static inline void scst_put_out_buf(struct scst_cmd *cmd, void *buf)
static inline int scst_get_sg_buf_first(struct scst_cmd *cmd, uint8_t **buf, static inline int scst_get_sg_buf_first(struct scst_cmd *cmd, uint8_t **buf,
struct scatterlist *sg, int sg_cnt) struct scatterlist *sg, int sg_cnt)
{ {
if (unlikely(sg == NULL)) if (unlikely(sg == NULL)) {
*buf = NULL;
return 0; return 0;
}
cmd->get_sg_buf_entry_num = 0; cmd->get_sg_buf_entry_num = 0;
cmd->get_sg_buf_cur_sg_entry = cmd->sg; cmd->get_sg_buf_cur_sg_entry = cmd->sg;
cmd->may_need_dma_sync = 1; cmd->may_need_dma_sync = 1;