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authorAlex Elder <elder@linaro.org>2018-04-10 17:25:37 -0500
committerAndy Gross <andy.gross@linaro.org>2018-05-25 15:53:53 -0500
commit7070874973eeccd867628a5c9eaefee3e832ccaa (patch)
treed6d54d74925d87ba9b953d628bb7e69ef36f6fca /drivers/soc/qcom/smem.c
parent36b0aefdee6e203f3130d7444bf5103139ecbe25 (diff)
soc: qcom: smem: fix first cache entry calculation
Cached items are found at the high end of an smem partition. A cached item's shared memory precedes the private entry structure that describes it. The address of the structure describing the first cached item should be returned by phdr_to_first_cached_entry(). However the function calculates the start address using the wrong structure size. Fix this by computing the first item's entry structure address by subtracting the size of a private entry structure rather than a partition header structure. Signed-off-by: Alex Elder <elder@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'drivers/soc/qcom/smem.c')
-rw-r--r--drivers/soc/qcom/smem.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
index 0b94d62fad2b..7f38c5e11440 100644
--- a/drivers/soc/qcom/smem.c
+++ b/drivers/soc/qcom/smem.c
@@ -292,8 +292,9 @@ static void *phdr_to_first_cached_entry(struct smem_partition_header *phdr,
size_t cacheline)
{
void *p = phdr;
+ struct smem_private_entry *e;
- return p + le32_to_cpu(phdr->size) - ALIGN(sizeof(*phdr), cacheline);
+ return p + le32_to_cpu(phdr->size) - ALIGN(sizeof(*e), cacheline);
}
static void *phdr_to_last_cached_entry(struct smem_partition_header *phdr)