| Message ID | 20171206141923.817850-1-arnd@arndb.de |
|---|---|
| State | Superseded |
| Headers | show |
| Series | ntb_hw_switchtec: fix logic error | expand |
Hey, Thanks, nice catch. On 06/12/17 07:19 AM, Arnd Bergmann wrote: > Newer gcc (version 7 and 8 presumably) warn about a statement mixing > the << operator with logical and: > > drivers/ntb/hw/mscc/ntb_hw_switchtec.c: In function 'switchtec_ntb_init_sndev': > drivers/ntb/hw/mscc/ntb_hw_switchtec.c:888:24: error: '<<' in boolean context, did you mean '<' ? [-Werror=int-in-bool-context] > > My interpretation here is that the author must have intended a bitmask > rather than a comparison, so I'm changing the '&&' to '&', which makes > a lot more sense in the context. > > Fixes: 1b249475275d ("ntb_hw_switchtec: Allow using Switchtec NTB in multi-partition setups") > Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Logan
diff --git a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c index bcd5b6fb3800..76acb8bba3f2 100644 --- a/drivers/ntb/hw/mscc/ntb_hw_switchtec.c +++ b/drivers/ntb/hw/mscc/ntb_hw_switchtec.c @@ -885,7 +885,7 @@ static int switchtec_ntb_init_sndev(struct switchtec_ntb *sndev) } sndev->peer_partition = ffs(tpart_vec) - 1; - if (!(part_map && (1 << sndev->peer_partition))) { + if (!(part_map & (1 << sndev->peer_partition))) { dev_err(&sndev->stdev->dev, "ntb target partition is not NT partition\n"); return -ENODEV;
Newer gcc (version 7 and 8 presumably) warn about a statement mixing the << operator with logical and: drivers/ntb/hw/mscc/ntb_hw_switchtec.c: In function 'switchtec_ntb_init_sndev': drivers/ntb/hw/mscc/ntb_hw_switchtec.c:888:24: error: '<<' in boolean context, did you mean '<' ? [-Werror=int-in-bool-context] My interpretation here is that the author must have intended a bitmask rather than a comparison, so I'm changing the '&&' to '&', which makes a lot more sense in the context. Fixes: 1b249475275d ("ntb_hw_switchtec: Allow using Switchtec NTB in multi-partition setups") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/ntb/hw/mscc/ntb_hw_switchtec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.9.0