The patch titled
spi: limit reaches -1, tested 0
has been removed from the -mm tree. Its filename was
spi-limit-reaches-1-tested-0.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: spi: limit reaches -1, tested 0
From: Roel Kluin <roel.kluin@xxxxxxxxx>
With a postfix decrement limit will reach -1 rather than 0, so the warning
will not be issued.
Also, add a cpu_relax() into the busy-wait loop.
Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
Cc: Mariusz Ceier <mceier@xxxxxxxxx>
Acked-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/spi/spi_imx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN drivers/spi/spi_imx.c~spi-limit-reaches-1-tested-0 drivers/spi/spi_imx.c
--- a/drivers/spi/spi_imx.c~spi-limit-reaches-1-tested-0
+++ a/drivers/spi/spi_imx.c
@@ -779,7 +779,8 @@ static irqreturn_t interrupt_transfer(st
/* Read trailing bytes */
limit = loops_per_jiffy << 1;
- while ((read(drv_data) == 0) && limit--);
+ while ((read(drv_data) == 0) && --limit)
+ cpu_relax();
if (limit == 0)
dev_err(&drv_data->pdev->dev,
_
Patches currently in -mm which might be from roel.kluin@xxxxxxxxx are
origin.patch
linux-next.patch
drm-fix-lock_test_with_return-macro.patch
pata-rb532-cf-platform_get_irq-failure-ignored.patch
uwb-event_size-should-be-signed.patch
scsi-ncr53c8xx-div-reaches-1.patch
scsi-pcmcia-nsp_cs-time_out-reaches-1.patch
frv-duplicate-output_buffer-of-e03.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
m68k-count-can-reach-51-not-50.patch
ufs-sector_t-cannot-be-negative.patch
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