From: "Bryan O'Sullivan" The tail register read became redundant as the result of earlier receive interrupt bug fixes. Drop another unneeded register read. And another line that got duplicated. Signed-off-by: Dave Olson Signed-off-by: Bryan O'Sullivan Cc: "Michael S. Tsirkin" Cc: Roland Dreier Signed-off-by: Andrew Morton --- drivers/infiniband/hw/ipath/ipath_driver.c | 3 --- drivers/infiniband/hw/ipath/ipath_ht400.c | 1 - drivers/infiniband/hw/ipath/ipath_intr.c | 1 - 3 files changed, 5 deletions(-) diff -puN drivers/infiniband/hw/ipath/ipath_driver.c~ib-ipath-removed-redundant-statements drivers/infiniband/hw/ipath/ipath_driver.c --- a/drivers/infiniband/hw/ipath/ipath_driver.c~ib-ipath-removed-redundant-statements +++ a/drivers/infiniband/hw/ipath/ipath_driver.c @@ -890,9 +890,6 @@ void ipath_kreceive(struct ipath_devdata goto done; reloop: - /* read only once at start for performance */ - hdrqtail = (u32)le64_to_cpu(*dd->ipath_hdrqtailptr); - for (i = 0; l != hdrqtail; i++) { u32 qp; u8 *bthbytes; diff -puN drivers/infiniband/hw/ipath/ipath_ht400.c~ib-ipath-removed-redundant-statements drivers/infiniband/hw/ipath/ipath_ht400.c --- a/drivers/infiniband/hw/ipath/ipath_ht400.c~ib-ipath-removed-redundant-statements +++ a/drivers/infiniband/hw/ipath/ipath_ht400.c @@ -1573,7 +1573,6 @@ void ipath_init_ht400_funcs(struct ipath dd->ipath_f_reset = ipath_setup_ht_reset; dd->ipath_f_get_boardname = ipath_ht_boardname; dd->ipath_f_init_hwerrors = ipath_ht_init_hwerrors; - dd->ipath_f_init_hwerrors = ipath_ht_init_hwerrors; dd->ipath_f_early_init = ipath_ht_early_init; dd->ipath_f_handle_hwerrors = ipath_ht_handle_hwerrors; dd->ipath_f_quiet_serdes = ipath_ht_quiet_serdes; diff -puN drivers/infiniband/hw/ipath/ipath_intr.c~ib-ipath-removed-redundant-statements drivers/infiniband/hw/ipath/ipath_intr.c --- a/drivers/infiniband/hw/ipath/ipath_intr.c~ib-ipath-removed-redundant-statements +++ a/drivers/infiniband/hw/ipath/ipath_intr.c @@ -824,7 +824,6 @@ irqreturn_t ipath_intr(int irq, void *da ipath_stats.sps_fastrcvint++; goto done; } - istat = ipath_read_kreg32(dd, dd->ipath_kregs->kr_intstatus); } istat = ipath_read_kreg32(dd, dd->ipath_kregs->kr_intstatus); _