For some 32-bit architectures calculation of DTO and STO timeout can be
incorrect
due to multiply overflow. Lets prevent this by casting multiply and result to
u64.
Suggested by Jisheng Zhang.
Switch DIV_ROUND_UP macro to DIV_ROUND_UP_ULL is not reasonable
because overflow happens on multiply and DIV_ROUND_UP_ULL helps
with sum overflow.
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Changes since v2:
-add fix for cto_ms
Evgeniy Didin (2):
mmc: dw_mmc: Fix the DTO timeout overflow calculation for 32-bit
systems
mmc: dw_mmc: Fix the CTO overflow calculation for 32-bit systems
drivers/mmc/host/dw_mmc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
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2.11.0
