* [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-05 9:45 ` Dan Carpenter
0 siblings, 0 replies; 16+ messages in thread
From: Dan Carpenter @ 2018-07-05 9:45 UTC (permalink / raw)
To: Subrahmanya Lingappa
Cc: Lorenzo Pieralisi, Bjorn Helgaas, linux-pci, kernel-janitors
IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Untested... Possibly the problem is that there are too many multiplies
by * 1024.
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
index 4d6c20e47bed..cf0aa7cee5b0 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -107,7 +107,7 @@
#define CFG_WINDOW_TYPE 0
#define IO_WINDOW_TYPE 1
#define MEM_WINDOW_TYPE 2
-#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
+#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
#define MAX_PIO_WINDOWS 8
/* Parameters for the waiting for link up routine */
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-05 9:45 ` Dan Carpenter
0 siblings, 0 replies; 16+ messages in thread
From: Dan Carpenter @ 2018-07-05 9:45 UTC (permalink / raw)
To: Subrahmanya Lingappa
Cc: Lorenzo Pieralisi, Bjorn Helgaas, linux-pci, kernel-janitors
IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
Untested... Possibly the problem is that there are too many multiplies
by * 1024.
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
index 4d6c20e47bed..cf0aa7cee5b0 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -107,7 +107,7 @@
#define CFG_WINDOW_TYPE 0
#define IO_WINDOW_TYPE 1
#define MEM_WINDOW_TYPE 2
-#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
+#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
#define MAX_PIO_WINDOWS 8
/* Parameters for the waiting for link up routine */
^ permalink raw reply related [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
2018-07-05 9:45 ` Dan Carpenter
@ 2018-07-06 11:26 ` Lorenzo Pieralisi
-1 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-06 11:26 UTC (permalink / raw)
To: Dan Carpenter, Subrahmanya Lingappa
Cc: Bjorn Helgaas, linux-pci, kernel-janitors
On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>
> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> Untested... Possibly the problem is that there are too many multiplies
> by * 1024.
Hi Subrahmanya,
I always thought that that macro value was questionable, please
can you comment on this ?
Thanks,
Lorenzo
> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
> index 4d6c20e47bed..cf0aa7cee5b0 100644
> --- a/drivers/pci/controller/pcie-mobiveil.c
> +++ b/drivers/pci/controller/pcie-mobiveil.c
> @@ -107,7 +107,7 @@
> #define CFG_WINDOW_TYPE 0
> #define IO_WINDOW_TYPE 1
> #define MEM_WINDOW_TYPE 2
> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> #define MAX_PIO_WINDOWS 8
>
> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-06 11:26 ` Lorenzo Pieralisi
0 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-06 11:26 UTC (permalink / raw)
To: Dan Carpenter, Subrahmanya Lingappa
Cc: Bjorn Helgaas, linux-pci, kernel-janitors
On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>
> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> Untested... Possibly the problem is that there are too many multiplies
> by * 1024.
Hi Subrahmanya,
I always thought that that macro value was questionable, please
can you comment on this ?
Thanks,
Lorenzo
> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
> index 4d6c20e47bed..cf0aa7cee5b0 100644
> --- a/drivers/pci/controller/pcie-mobiveil.c
> +++ b/drivers/pci/controller/pcie-mobiveil.c
> @@ -107,7 +107,7 @@
> #define CFG_WINDOW_TYPE 0
> #define IO_WINDOW_TYPE 1
> #define MEM_WINDOW_TYPE 2
> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> #define MAX_PIO_WINDOWS 8
>
> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
2018-07-06 11:26 ` Lorenzo Pieralisi
@ 2018-07-09 10:37 ` Subrahmanya Lingappa
-1 siblings, 0 replies; 16+ messages in thread
From: Subrahmanya Lingappa @ 2018-07-09 10:25 UTC (permalink / raw)
To: Lorenzo Pieralisi
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
Hi Lorenzo,
Our reference IP's hardware registers require the to support 256GB
inbound window size and this driver did exactly that I believe.
May I ask, why do you think this size is questionable ?
Thanks.
On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
>> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>>
>> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
>> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>> ---
>> Untested... Possibly the problem is that there are too many multiplies
>> by * 1024.
>
> Hi Subrahmanya,
>
> I always thought that that macro value was questionable, please
> can you comment on this ?
>
> Thanks,
> Lorenzo
>
>> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
>> index 4d6c20e47bed..cf0aa7cee5b0 100644
>> --- a/drivers/pci/controller/pcie-mobiveil.c
>> +++ b/drivers/pci/controller/pcie-mobiveil.c
>> @@ -107,7 +107,7 @@
>> #define CFG_WINDOW_TYPE 0
>> #define IO_WINDOW_TYPE 1
>> #define MEM_WINDOW_TYPE 2
>> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
>> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
>> #define MAX_PIO_WINDOWS 8
>>
>> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-09 10:37 ` Subrahmanya Lingappa
0 siblings, 0 replies; 16+ messages in thread
From: Subrahmanya Lingappa @ 2018-07-09 10:37 UTC (permalink / raw)
To: Lorenzo Pieralisi
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
Hi Lorenzo,
Our reference IP's hardware registers require the to support 256GB
inbound window size and this driver did exactly that I believe.
May I ask, why do you think this size is questionable ?
Thanks.
On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
>> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>>
>> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
>> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>> ---
>> Untested... Possibly the problem is that there are too many multiplies
>> by * 1024.
>
> Hi Subrahmanya,
>
> I always thought that that macro value was questionable, please
> can you comment on this ?
>
> Thanks,
> Lorenzo
>
>> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
>> index 4d6c20e47bed..cf0aa7cee5b0 100644
>> --- a/drivers/pci/controller/pcie-mobiveil.c
>> +++ b/drivers/pci/controller/pcie-mobiveil.c
>> @@ -107,7 +107,7 @@
>> #define CFG_WINDOW_TYPE 0
>> #define IO_WINDOW_TYPE 1
>> #define MEM_WINDOW_TYPE 2
>> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
>> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
>> #define MAX_PIO_WINDOWS 8
>>
>> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
2018-07-09 10:37 ` Subrahmanya Lingappa
@ 2018-07-09 11:42 ` Lorenzo Pieralisi
-1 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-09 11:42 UTC (permalink / raw)
To: Subrahmanya Lingappa
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
On Mon, Jul 09, 2018 at 03:55:00PM +0530, Subrahmanya Lingappa wrote:
> Hi Lorenzo,
>
> Our reference IP's hardware registers require the to support 256GB
> inbound window size and this driver did exactly that I believe.
No it does not, please check what this patch does, the window size
is not currently configured as you wish.
More importantly, nobody can even test it given that this driver lacks a
Kconfig and a Makefile entry unless I am missing something, I presume
they were lost in patch reviews but you ought to fix this as soon as
possible please since this was something I should not have missed.
> May I ask, why do you think this size is questionable ?
The macro is not questionable, it is buggy, the size is what you
tell me it should be, I agree.
Lorenzo
>
> Thanks.
>
>
> On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
> <lorenzo.pieralisi@arm.com> wrote:
> > On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> >> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
> >>
> >> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> >> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> >> ---
> >> Untested... Possibly the problem is that there are too many multiplies
> >> by * 1024.
> >
> > Hi Subrahmanya,
> >
> > I always thought that that macro value was questionable, please
> > can you comment on this ?
> >
> > Thanks,
> > Lorenzo
> >
> >> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
> >> index 4d6c20e47bed..cf0aa7cee5b0 100644
> >> --- a/drivers/pci/controller/pcie-mobiveil.c
> >> +++ b/drivers/pci/controller/pcie-mobiveil.c
> >> @@ -107,7 +107,7 @@
> >> #define CFG_WINDOW_TYPE 0
> >> #define IO_WINDOW_TYPE 1
> >> #define MEM_WINDOW_TYPE 2
> >> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> >> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> >> #define MAX_PIO_WINDOWS 8
> >>
> >> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-09 11:42 ` Lorenzo Pieralisi
0 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-09 11:42 UTC (permalink / raw)
To: Subrahmanya Lingappa
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
On Mon, Jul 09, 2018 at 03:55:00PM +0530, Subrahmanya Lingappa wrote:
> Hi Lorenzo,
>
> Our reference IP's hardware registers require the to support 256GB
> inbound window size and this driver did exactly that I believe.
No it does not, please check what this patch does, the window size
is not currently configured as you wish.
More importantly, nobody can even test it given that this driver lacks a
Kconfig and a Makefile entry unless I am missing something, I presume
they were lost in patch reviews but you ought to fix this as soon as
possible please since this was something I should not have missed.
> May I ask, why do you think this size is questionable ?
The macro is not questionable, it is buggy, the size is what you
tell me it should be, I agree.
Lorenzo
>
> Thanks.
>
>
> On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
> <lorenzo.pieralisi@arm.com> wrote:
> > On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> >> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
> >>
> >> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> >> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> >> ---
> >> Untested... Possibly the problem is that there are too many multiplies
> >> by * 1024.
> >
> > Hi Subrahmanya,
> >
> > I always thought that that macro value was questionable, please
> > can you comment on this ?
> >
> > Thanks,
> > Lorenzo
> >
> >> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
> >> index 4d6c20e47bed..cf0aa7cee5b0 100644
> >> --- a/drivers/pci/controller/pcie-mobiveil.c
> >> +++ b/drivers/pci/controller/pcie-mobiveil.c
> >> @@ -107,7 +107,7 @@
> >> #define CFG_WINDOW_TYPE 0
> >> #define IO_WINDOW_TYPE 1
> >> #define MEM_WINDOW_TYPE 2
> >> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> >> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> >> #define MAX_PIO_WINDOWS 8
> >>
> >> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
2018-07-09 11:42 ` Lorenzo Pieralisi
@ 2018-07-16 6:52 ` Subrahmanya Lingappa
-1 siblings, 0 replies; 16+ messages in thread
From: Subrahmanya Lingappa @ 2018-07-16 6:40 UTC (permalink / raw)
To: Lorenzo Pieralisi
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
Lorenzo,
looks like I missed it during the review process;
I'll submit the Kconfig and makefile as soon as possible.
Thanks,
On Mon, Jul 9, 2018 at 5:12 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On Mon, Jul 09, 2018 at 03:55:00PM +0530, Subrahmanya Lingappa wrote:
>> Hi Lorenzo,
>>
>> Our reference IP's hardware registers require the to support 256GB
>> inbound window size and this driver did exactly that I believe.
>
> No it does not, please check what this patch does, the window size
> is not currently configured as you wish.
>
> More importantly, nobody can even test it given that this driver lacks a
> Kconfig and a Makefile entry unless I am missing something, I presume
> they were lost in patch reviews but you ought to fix this as soon as
> possible please since this was something I should not have missed.
>
>> May I ask, why do you think this size is questionable ?
>
> The macro is not questionable, it is buggy, the size is what you
> tell me it should be, I agree.
>
> Lorenzo
>
>>
>> Thanks.
>>
>>
>> On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
>> <lorenzo.pieralisi@arm.com> wrote:
>> > On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
>> >> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>> >>
>> >> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
>> >> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>> >> ---
>> >> Untested... Possibly the problem is that there are too many multiplies
>> >> by * 1024.
>> >
>> > Hi Subrahmanya,
>> >
>> > I always thought that that macro value was questionable, please
>> > can you comment on this ?
>> >
>> > Thanks,
>> > Lorenzo
>> >
>> >> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
>> >> index 4d6c20e47bed..cf0aa7cee5b0 100644
>> >> --- a/drivers/pci/controller/pcie-mobiveil.c
>> >> +++ b/drivers/pci/controller/pcie-mobiveil.c
>> >> @@ -107,7 +107,7 @@
>> >> #define CFG_WINDOW_TYPE 0
>> >> #define IO_WINDOW_TYPE 1
>> >> #define MEM_WINDOW_TYPE 2
>> >> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
>> >> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
>> >> #define MAX_PIO_WINDOWS 8
>> >>
>> >> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-16 6:52 ` Subrahmanya Lingappa
0 siblings, 0 replies; 16+ messages in thread
From: Subrahmanya Lingappa @ 2018-07-16 6:52 UTC (permalink / raw)
To: Lorenzo Pieralisi
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
Lorenzo,
looks like I missed it during the review process;
I'll submit the Kconfig and makefile as soon as possible.
Thanks,
On Mon, Jul 9, 2018 at 5:12 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On Mon, Jul 09, 2018 at 03:55:00PM +0530, Subrahmanya Lingappa wrote:
>> Hi Lorenzo,
>>
>> Our reference IP's hardware registers require the to support 256GB
>> inbound window size and this driver did exactly that I believe.
>
> No it does not, please check what this patch does, the window size
> is not currently configured as you wish.
>
> More importantly, nobody can even test it given that this driver lacks a
> Kconfig and a Makefile entry unless I am missing something, I presume
> they were lost in patch reviews but you ought to fix this as soon as
> possible please since this was something I should not have missed.
>
>> May I ask, why do you think this size is questionable ?
>
> The macro is not questionable, it is buggy, the size is what you
> tell me it should be, I agree.
>
> Lorenzo
>
>>
>> Thanks.
>>
>>
>> On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
>> <lorenzo.pieralisi@arm.com> wrote:
>> > On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
>> >> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>> >>
>> >> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
>> >> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>> >> ---
>> >> Untested... Possibly the problem is that there are too many multiplies
>> >> by * 1024.
>> >
>> > Hi Subrahmanya,
>> >
>> > I always thought that that macro value was questionable, please
>> > can you comment on this ?
>> >
>> > Thanks,
>> > Lorenzo
>> >
>> >> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
>> >> index 4d6c20e47bed..cf0aa7cee5b0 100644
>> >> --- a/drivers/pci/controller/pcie-mobiveil.c
>> >> +++ b/drivers/pci/controller/pcie-mobiveil.c
>> >> @@ -107,7 +107,7 @@
>> >> #define CFG_WINDOW_TYPE 0
>> >> #define IO_WINDOW_TYPE 1
>> >> #define MEM_WINDOW_TYPE 2
>> >> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
>> >> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
>> >> #define MAX_PIO_WINDOWS 8
>> >>
>> >> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
2018-07-16 6:52 ` Subrahmanya Lingappa
@ 2018-07-26 9:46 ` Lorenzo Pieralisi
-1 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-26 9:46 UTC (permalink / raw)
To: Subrahmanya Lingappa
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
On Mon, Jul 16, 2018 at 12:10:46PM +0530, Subrahmanya Lingappa wrote:
> Lorenzo,
>
> looks like I missed it during the review process;
> I'll submit the Kconfig and makefile as soon as possible.
Hi Subrahmanya,
Will you have time to submit a patch soon ? I would like to queue
this fix too.
Thanks,
Lorenzo
> Thanks,
>
> On Mon, Jul 9, 2018 at 5:12 PM, Lorenzo Pieralisi
> <lorenzo.pieralisi@arm.com> wrote:
> > On Mon, Jul 09, 2018 at 03:55:00PM +0530, Subrahmanya Lingappa wrote:
> >> Hi Lorenzo,
> >>
> >> Our reference IP's hardware registers require the to support 256GB
> >> inbound window size and this driver did exactly that I believe.
> >
> > No it does not, please check what this patch does, the window size
> > is not currently configured as you wish.
> >
> > More importantly, nobody can even test it given that this driver lacks a
> > Kconfig and a Makefile entry unless I am missing something, I presume
> > they were lost in patch reviews but you ought to fix this as soon as
> > possible please since this was something I should not have missed.
> >
> >> May I ask, why do you think this size is questionable ?
> >
> > The macro is not questionable, it is buggy, the size is what you
> > tell me it should be, I agree.
> >
> > Lorenzo
> >
> >>
> >> Thanks.
> >>
> >>
> >> On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
> >> <lorenzo.pieralisi@arm.com> wrote:
> >> > On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> >> >> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
> >> >>
> >> >> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> >> >> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> >> >> ---
> >> >> Untested... Possibly the problem is that there are too many multiplies
> >> >> by * 1024.
> >> >
> >> > Hi Subrahmanya,
> >> >
> >> > I always thought that that macro value was questionable, please
> >> > can you comment on this ?
> >> >
> >> > Thanks,
> >> > Lorenzo
> >> >
> >> >> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
> >> >> index 4d6c20e47bed..cf0aa7cee5b0 100644
> >> >> --- a/drivers/pci/controller/pcie-mobiveil.c
> >> >> +++ b/drivers/pci/controller/pcie-mobiveil.c
> >> >> @@ -107,7 +107,7 @@
> >> >> #define CFG_WINDOW_TYPE 0
> >> >> #define IO_WINDOW_TYPE 1
> >> >> #define MEM_WINDOW_TYPE 2
> >> >> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> >> >> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> >> >> #define MAX_PIO_WINDOWS 8
> >> >>
> >> >> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-26 9:46 ` Lorenzo Pieralisi
0 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-26 9:46 UTC (permalink / raw)
To: Subrahmanya Lingappa
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
On Mon, Jul 16, 2018 at 12:10:46PM +0530, Subrahmanya Lingappa wrote:
> Lorenzo,
>
> looks like I missed it during the review process;
> I'll submit the Kconfig and makefile as soon as possible.
Hi Subrahmanya,
Will you have time to submit a patch soon ? I would like to queue
this fix too.
Thanks,
Lorenzo
> Thanks,
>
> On Mon, Jul 9, 2018 at 5:12 PM, Lorenzo Pieralisi
> <lorenzo.pieralisi@arm.com> wrote:
> > On Mon, Jul 09, 2018 at 03:55:00PM +0530, Subrahmanya Lingappa wrote:
> >> Hi Lorenzo,
> >>
> >> Our reference IP's hardware registers require the to support 256GB
> >> inbound window size and this driver did exactly that I believe.
> >
> > No it does not, please check what this patch does, the window size
> > is not currently configured as you wish.
> >
> > More importantly, nobody can even test it given that this driver lacks a
> > Kconfig and a Makefile entry unless I am missing something, I presume
> > they were lost in patch reviews but you ought to fix this as soon as
> > possible please since this was something I should not have missed.
> >
> >> May I ask, why do you think this size is questionable ?
> >
> > The macro is not questionable, it is buggy, the size is what you
> > tell me it should be, I agree.
> >
> > Lorenzo
> >
> >>
> >> Thanks.
> >>
> >>
> >> On Fri, Jul 6, 2018 at 4:56 PM, Lorenzo Pieralisi
> >> <lorenzo.pieralisi@arm.com> wrote:
> >> > On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> >> >> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
> >> >>
> >> >> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> >> >> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> >> >> ---
> >> >> Untested... Possibly the problem is that there are too many multiplies
> >> >> by * 1024.
> >> >
> >> > Hi Subrahmanya,
> >> >
> >> > I always thought that that macro value was questionable, please
> >> > can you comment on this ?
> >> >
> >> > Thanks,
> >> > Lorenzo
> >> >
> >> >> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
> >> >> index 4d6c20e47bed..cf0aa7cee5b0 100644
> >> >> --- a/drivers/pci/controller/pcie-mobiveil.c
> >> >> +++ b/drivers/pci/controller/pcie-mobiveil.c
> >> >> @@ -107,7 +107,7 @@
> >> >> #define CFG_WINDOW_TYPE 0
> >> >> #define IO_WINDOW_TYPE 1
> >> >> #define MEM_WINDOW_TYPE 2
> >> >> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> >> >> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> >> >> #define MAX_PIO_WINDOWS 8
> >> >>
> >> >> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
2018-07-05 9:45 ` Dan Carpenter
@ 2018-07-26 10:56 ` Lorenzo Pieralisi
-1 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-26 10:56 UTC (permalink / raw)
To: Dan Carpenter
Cc: Subrahmanya Lingappa, Bjorn Helgaas, linux-pci, kernel-janitors
On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>
> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> Untested... Possibly the problem is that there are too many multiplies
> by * 1024.
>
> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
Applied to pci/mobiveil for v4.19 (it is still not fixing anything
given that the driver lacks a Kconfig and Makefile entries - that
must be fixed with urgency), thanks.
Lorenzo
> index 4d6c20e47bed..cf0aa7cee5b0 100644
> --- a/drivers/pci/controller/pcie-mobiveil.c
> +++ b/drivers/pci/controller/pcie-mobiveil.c
> @@ -107,7 +107,7 @@
> #define CFG_WINDOW_TYPE 0
> #define IO_WINDOW_TYPE 1
> #define MEM_WINDOW_TYPE 2
> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> #define MAX_PIO_WINDOWS 8
>
> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-07-26 10:56 ` Lorenzo Pieralisi
0 siblings, 0 replies; 16+ messages in thread
From: Lorenzo Pieralisi @ 2018-07-26 10:56 UTC (permalink / raw)
To: Dan Carpenter
Cc: Subrahmanya Lingappa, Bjorn Helgaas, linux-pci, kernel-janitors
On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>
> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
> Untested... Possibly the problem is that there are too many multiplies
> by * 1024.
>
> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
Applied to pci/mobiveil for v4.19 (it is still not fixing anything
given that the driver lacks a Kconfig and Makefile entries - that
must be fixed with urgency), thanks.
Lorenzo
> index 4d6c20e47bed..cf0aa7cee5b0 100644
> --- a/drivers/pci/controller/pcie-mobiveil.c
> +++ b/drivers/pci/controller/pcie-mobiveil.c
> @@ -107,7 +107,7 @@
> #define CFG_WINDOW_TYPE 0
> #define IO_WINDOW_TYPE 1
> #define MEM_WINDOW_TYPE 2
> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
> #define MAX_PIO_WINDOWS 8
>
> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
2018-07-26 10:56 ` Lorenzo Pieralisi
@ 2018-08-01 7:19 ` Subrahmanya Lingappa
-1 siblings, 0 replies; 16+ messages in thread
From: Subrahmanya Lingappa @ 2018-08-01 7:07 UTC (permalink / raw)
To: Lorenzo Pieralisi
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
Lorenzo,
Added the compilation support in the next patch submitted at :
https://patchwork.kernel.org/patch/10551771/
please review.
Thanks,
Subrahmanya
On Thu, Jul 26, 2018 at 4:26 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
>> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>>
>> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
>> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>> ---
>> Untested... Possibly the problem is that there are too many multiplies
>> by * 1024.
>>
>> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
>
> Applied to pci/mobiveil for v4.19 (it is still not fixing anything
> given that the driver lacks a Kconfig and Makefile entries - that
> must be fixed with urgency), thanks.
>
> Lorenzo
>
>> index 4d6c20e47bed..cf0aa7cee5b0 100644
>> --- a/drivers/pci/controller/pcie-mobiveil.c
>> +++ b/drivers/pci/controller/pcie-mobiveil.c
>> @@ -107,7 +107,7 @@
>> #define CFG_WINDOW_TYPE 0
>> #define IO_WINDOW_TYPE 1
>> #define MEM_WINDOW_TYPE 2
>> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
>> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
>> #define MAX_PIO_WINDOWS 8
>>
>> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE
@ 2018-08-01 7:19 ` Subrahmanya Lingappa
0 siblings, 0 replies; 16+ messages in thread
From: Subrahmanya Lingappa @ 2018-08-01 7:19 UTC (permalink / raw)
To: Lorenzo Pieralisi
Cc: Dan Carpenter, Bjorn Helgaas, linux-pci, kernel-janitors
Lorenzo,
Added the compilation support in the next patch submitted at :
https://patchwork.kernel.org/patch/10551771/
please review.
Thanks,
Subrahmanya
On Thu, Jul 26, 2018 at 4:26 PM, Lorenzo Pieralisi
<lorenzo.pieralisi@arm.com> wrote:
> On Thu, Jul 05, 2018 at 12:45:39PM +0300, Dan Carpenter wrote:
>> IB_WIN_SIZE is larger than INT_MAX so we need to cast it to u64.
>>
>> Fixes: 9af6bcb11e12 ("PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver")
>> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>> ---
>> Untested... Possibly the problem is that there are too many multiplies
>> by * 1024.
>>
>> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
>
> Applied to pci/mobiveil for v4.19 (it is still not fixing anything
> given that the driver lacks a Kconfig and Makefile entries - that
> must be fixed with urgency), thanks.
>
> Lorenzo
>
>> index 4d6c20e47bed..cf0aa7cee5b0 100644
>> --- a/drivers/pci/controller/pcie-mobiveil.c
>> +++ b/drivers/pci/controller/pcie-mobiveil.c
>> @@ -107,7 +107,7 @@
>> #define CFG_WINDOW_TYPE 0
>> #define IO_WINDOW_TYPE 1
>> #define MEM_WINDOW_TYPE 2
>> -#define IB_WIN_SIZE (256 * 1024 * 1024 * 1024)
>> +#define IB_WIN_SIZE ((u64)256 * 1024 * 1024 * 1024)
>> #define MAX_PIO_WINDOWS 8
>>
>> /* Parameters for the waiting for link up routine */
^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2018-08-01 8:51 UTC | newest]
Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-07-05 9:45 [PATCH] PCI: mobiveil: integer overflow in IB_WIN_SIZE Dan Carpenter
2018-07-05 9:45 ` Dan Carpenter
2018-07-06 11:26 ` Lorenzo Pieralisi
2018-07-06 11:26 ` Lorenzo Pieralisi
2018-07-09 10:25 ` Subrahmanya Lingappa
2018-07-09 10:37 ` Subrahmanya Lingappa
2018-07-09 11:42 ` Lorenzo Pieralisi
2018-07-09 11:42 ` Lorenzo Pieralisi
2018-07-16 6:40 ` Subrahmanya Lingappa
2018-07-16 6:52 ` Subrahmanya Lingappa
2018-07-26 9:46 ` Lorenzo Pieralisi
2018-07-26 9:46 ` Lorenzo Pieralisi
2018-07-26 10:56 ` Lorenzo Pieralisi
2018-07-26 10:56 ` Lorenzo Pieralisi
2018-08-01 7:07 ` Subrahmanya Lingappa
2018-08-01 7:19 ` Subrahmanya Lingappa
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