diff options
| author | Mischa Jonker <mjonker@synopsys.com> | 2013-08-30 11:56:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-18 07:45:45 -0700 |
| commit | 8036c31c84117707d4132cd199d997d7ed41427c (patch) | |
| tree | 33c8a035061278ccabc7196be5ccffbebd4811cd /include | |
| parent | 98f745546bd27e54fe0bed1e9c900301428de9d5 (diff) | |
ARC: Fix __udelay calculation
commit 7efd0da2d17360e1cef91507dbe619db0ee2c691 upstream.
Cast usecs to u64, to ensure that the (usecs * 4295 * HZ)
multiplication is 64 bit.
Initially, the (usecs * 4295 * HZ) part was done as a 32 bit
multiplication, with the result casted to 64 bit. This led to some bits
falling off, causing a "DMA initialization error" in the stmmac Ethernet
driver, due to a premature timeout.
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions