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| author | Alex Elder <elder@linaro.org> | 2018-04-10 17:25:37 -0500 |
|---|---|---|
| committer | Andy Gross <andy.gross@linaro.org> | 2018-05-25 15:53:53 -0500 |
| commit | 7070874973eeccd867628a5c9eaefee3e832ccaa (patch) | |
| tree | d6d54d74925d87ba9b953d628bb7e69ef36f6fca /drivers/soc | |
| parent | 36b0aefdee6e203f3130d7444bf5103139ecbe25 (diff) | |
| download | linux-7070874973eeccd867628a5c9eaefee3e832ccaa.tar.gz linux-7070874973eeccd867628a5c9eaefee3e832ccaa.tar.bz2 linux-7070874973eeccd867628a5c9eaefee3e832ccaa.zip | |
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')
| -rw-r--r-- | drivers/soc/qcom/smem.c | 3 |
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) |