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From: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
To: "Alastair D'Silva" <alastair@d-silva.org>,
	"'Alastair D'Silva'" <alastair@au1.ibm.com>
Cc: "'Greg Kurz'" <groug@kaod.org>,
	"'Frederic Barrat'" <fbarrat@linux.ibm.com>,
	"'Arnd Bergmann'" <arnd@arndb.de>,
	"'Greg Kroah-Hartman'" <gregkh@linuxfoundation.org>,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5] ocxl: Rename struct link to ocxl_link
Date: Wed, 27 Feb 2019 18:54:56 +1100	[thread overview]
Message-ID: <a36b088b-b8d7-8725-50db-6aad58672784@au1.ibm.com> (raw)
In-Reply-To: <156e01d4ce6e$ee42d9f0$cac88dd0$@d-silva.org>

On 27/2/19 6:34 pm, Alastair D'Silva wrote:>>> diff --git 
a/drivers/misc/ocxl/file.c b/drivers/misc/ocxl/file.c index
>>> e6a607488f8a..16eb8a60d5c7 100644
>>> --- a/drivers/misc/ocxl/file.c
>>> +++ b/drivers/misc/ocxl/file.c
>>> @@ -152,7 +152,7 @@ static long afu_ioctl_enable_p9_wait(struct
>>> ocxl_context *ctx,
>>>
>>>    		if (status == ATTACHED) {
>>>    			int rc;
>>> -			struct link *link = ctx->afu->fn->link;
>>> +			void *link = ctx->afu->fn->link;
>>
>> This doesn't look like a rename...
> 
> That corrects the type to what the member (and prototype for ocxl_link_update_pe) declare it as.
> 
> The struct link there is bogus, it shouldn't even compile (since the intended struct link is defined in a different compilation unit), but instead picks up a different definition of 'struct link' from elsewhere.
> 

Given there's only a handful of struct links defined across the entire 
kernel, I'm going to guess that the definition it's picking up is in 
fact the ocxl one.

I think the better solution here is to move struct ocxl_link into 
ocxl_internal.h, change ocxl_fn::link to be struct ocxl_link * rather 
than void *, and update the function signature for ocxl_link_update_pe() 
as well.

-- 
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnellan@au1.ibm.com  IBM Australia Limited


WARNING: multiple messages have this Message-ID (diff)
From: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
To: "Alastair D'Silva" <alastair@d-silva.org>,
	"'Alastair D'Silva'" <alastair@au1.ibm.com>
Cc: 'Arnd Bergmann' <arnd@arndb.de>,
	'Greg Kroah-Hartman' <gregkh@linuxfoundation.org>,
	'Greg Kurz' <groug@kaod.org>,
	linux-kernel@vger.kernel.org,
	'Frederic Barrat' <fbarrat@linux.ibm.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 1/5] ocxl: Rename struct link to ocxl_link
Date: Wed, 27 Feb 2019 18:54:56 +1100	[thread overview]
Message-ID: <a36b088b-b8d7-8725-50db-6aad58672784@au1.ibm.com> (raw)
In-Reply-To: <156e01d4ce6e$ee42d9f0$cac88dd0$@d-silva.org>

On 27/2/19 6:34 pm, Alastair D'Silva wrote:>>> diff --git 
a/drivers/misc/ocxl/file.c b/drivers/misc/ocxl/file.c index
>>> e6a607488f8a..16eb8a60d5c7 100644
>>> --- a/drivers/misc/ocxl/file.c
>>> +++ b/drivers/misc/ocxl/file.c
>>> @@ -152,7 +152,7 @@ static long afu_ioctl_enable_p9_wait(struct
>>> ocxl_context *ctx,
>>>
>>>    		if (status == ATTACHED) {
>>>    			int rc;
>>> -			struct link *link = ctx->afu->fn->link;
>>> +			void *link = ctx->afu->fn->link;
>>
>> This doesn't look like a rename...
> 
> That corrects the type to what the member (and prototype for ocxl_link_update_pe) declare it as.
> 
> The struct link there is bogus, it shouldn't even compile (since the intended struct link is defined in a different compilation unit), but instead picks up a different definition of 'struct link' from elsewhere.
> 

Given there's only a handful of struct links defined across the entire 
kernel, I'm going to guess that the definition it's picking up is in 
fact the ocxl one.

I think the better solution here is to move struct ocxl_link into 
ocxl_internal.h, change ocxl_fn::link to be struct ocxl_link * rather 
than void *, and update the function signature for ocxl_link_update_pe() 
as well.

-- 
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnellan@au1.ibm.com  IBM Australia Limited


  reply	other threads:[~2019-02-27  7:55 UTC|newest]

Thread overview: 156+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-27  4:57 [PATCH 0/5] ocxl: OpenCAPI Cleanup Alastair D'Silva
2019-02-27  4:57 ` Alastair D'Silva
2019-02-27  4:57 ` [PATCH 1/5] ocxl: Rename struct link to ocxl_link Alastair D'Silva
2019-02-27  4:57   ` Alastair D'Silva
2019-02-27  7:15   ` Andrew Donnellan
2019-02-27  7:15     ` Andrew Donnellan
2019-02-27  7:34     ` Alastair D'Silva
2019-02-27  7:34       ` Alastair D'Silva
2019-02-27  7:54       ` Andrew Donnellan [this message]
2019-02-27  7:54         ` Andrew Donnellan
2019-02-27  8:04         ` Alastair D'Silva
2019-02-27  8:04           ` Alastair D'Silva
2019-02-27  8:18           ` Andrew Donnellan
2019-02-27  8:18             ` Andrew Donnellan
2019-02-27 13:45             ` Frederic Barrat
2019-02-27 13:45               ` Frederic Barrat
2019-02-27 13:59               ` Greg Kurz
2019-02-27 13:59                 ` Greg Kurz
2019-02-27 13:53   ` Greg Kurz
2019-02-27 13:53     ` Greg Kurz
2019-02-27  4:57 ` [PATCH 2/5] ocxl: Clean up printf formats Alastair D'Silva
2019-02-27  4:57   ` Alastair D'Silva
2019-02-27 13:40   ` Frederic Barrat
2019-02-27 13:40     ` Frederic Barrat
2019-02-28  5:02   ` Andrew Donnellan
2019-02-28  5:02     ` Andrew Donnellan
2019-03-02  1:13   ` Joe Perches
2019-03-02  1:13     ` Joe Perches
2019-02-27  4:57 ` [PATCH 3/5] ocxl: read_pasid never returns an error, so make it void Alastair D'Silva
2019-02-27  4:57   ` Alastair D'Silva
2019-02-27 13:25   ` Frederic Barrat
2019-02-27 13:25     ` Frederic Barrat
2019-02-28  5:03   ` Andrew Donnellan
2019-02-28  5:03     ` Andrew Donnellan
2019-02-27  4:57 ` [PATCH 4/5] ocxl: Remove superfluous 'extern' from headers Alastair D'Silva
2019-02-27  4:57   ` Alastair D'Silva
2019-02-27 13:36   ` Frederic Barrat
2019-02-27 13:36     ` Frederic Barrat
2019-02-28  5:05   ` Andrew Donnellan
2019-02-28  5:05     ` Andrew Donnellan
2019-02-27  4:57 ` [PATCH 5/5] ocxl: Remove some unused exported symbols Alastair D'Silva
2019-02-27  4:57   ` Alastair D'Silva
2019-02-27 13:39   ` Frederic Barrat
2019-02-27 13:39     ` Frederic Barrat
2019-02-28  5:23   ` Andrew Donnellan
2019-02-28  5:23     ` Andrew Donnellan
2019-03-13  4:06 ` [PATCH v2 0/5] ocxl: OpenCAPI Cleanup Alastair D'Silva
2019-03-13  4:06   ` Alastair D'Silva
2019-03-13  4:06   ` [PATCH 1/5] ocxl: Rename struct link to ocxl_link Alastair D'Silva
2019-03-13  4:06     ` Alastair D'Silva
2019-03-15  6:58     ` Andrew Donnellan
2019-03-15  6:58       ` Andrew Donnellan
2019-03-13  4:06   ` [PATCH 2/5] ocxl: Clean up printf formats Alastair D'Silva
2019-03-13  4:06     ` Alastair D'Silva
2019-03-13  8:24     ` Greg Kurz
2019-03-14  4:58     ` Andrew Donnellan
2019-03-14  4:58       ` Andrew Donnellan
2019-03-13  4:06   ` [PATCH 3/5] ocxl: read_pasid never returns an error, so make it void Alastair D'Silva
2019-03-13  4:06     ` Alastair D'Silva
2019-03-14  4:59     ` Andrew Donnellan
2019-03-14  4:59       ` Andrew Donnellan
2019-03-13  4:07   ` [PATCH 4/5] ocxl: Remove superfluous 'extern' from headers Alastair D'Silva
2019-03-13  4:07     ` Alastair D'Silva
2019-03-13  8:28     ` Greg Kurz
2019-03-14  5:08     ` Andrew Donnellan
2019-03-14  5:08       ` Andrew Donnellan
2019-03-13  4:07   ` [PATCH 5/5] ocxl: Remove some unused exported symbols Alastair D'Silva
2019-03-13  4:07     ` Alastair D'Silva
2019-03-13  9:10     ` Greg Kurz
2019-03-14  2:23       ` Alastair D'Silva
2019-03-14  6:50         ` Greg Kurz
2019-03-15  4:49     ` Andrew Donnellan
2019-03-15  4:49       ` Andrew Donnellan
2019-03-15  5:07       ` Andrew Donnellan
2019-03-15  5:07         ` Andrew Donnellan
2019-03-20  5:34   ` [PATCH v3 0/5] ocxl: OpenCAPI Cleanup Alastair D'Silva
2019-03-20  5:34     ` Alastair D'Silva
2019-03-20  5:34     ` [PATCH v3 1/5] ocxl: Rename struct link to ocxl_link Alastair D'Silva
2019-03-20  5:34       ` Alastair D'Silva
2019-03-20  5:34     ` [PATCH v3 2/5] ocxl: Clean up printf formats Alastair D'Silva
2019-03-20  5:34       ` Alastair D'Silva
2019-03-20 17:24       ` Joe Perches
2019-03-20 17:24         ` Joe Perches
2019-03-20  5:34     ` [PATCH v3 3/5] ocxl: read_pasid never returns an error, so make it void Alastair D'Silva
2019-03-20  5:34       ` Alastair D'Silva
2019-03-20  5:34     ` [PATCH v3 4/5] ocxl: Remove superfluous 'extern' from headers Alastair D'Silva
2019-03-20  5:34       ` Alastair D'Silva
2019-03-20  5:34     ` [PATCH v3 5/5] ocxl: Remove some unused exported symbols Alastair D'Silva
2019-03-20  5:34       ` Alastair D'Silva
2019-03-25  5:34     ` [PATCH v4 0/4] ocxl: OpenCAPI Cleanup Alastair D'Silva
2019-03-25  5:34       ` Alastair D'Silva
2019-03-25  5:34       ` [PATCH v4 1/4] ocxl: Rename struct link to ocxl_link Alastair D'Silva
2019-03-25  5:34         ` Alastair D'Silva
2019-04-03 14:18         ` Frederic Barrat
2019-04-03 14:18           ` Frederic Barrat
2019-04-05  7:05         ` Andrew Donnellan
2019-04-05  7:05           ` Andrew Donnellan
2019-05-03  6:59         ` Michael Ellerman
2019-03-25  5:34       ` [PATCH v4 2/4] ocxl: read_pasid never returns an error, so make it void Alastair D'Silva
2019-03-25  5:34         ` Alastair D'Silva
2019-04-03 14:20         ` Frederic Barrat
2019-04-03 14:20           ` Frederic Barrat
2019-04-05  7:05         ` Andrew Donnellan
2019-04-05  7:05           ` Andrew Donnellan
2019-03-25  5:34       ` [PATCH v4 3/4] ocxl: Remove superfluous 'extern' from headers Alastair D'Silva
2019-03-25  5:34         ` Alastair D'Silva
2019-03-25 16:55         ` Greg Kurz
2019-03-25 16:55           ` Greg Kurz
2019-04-03 14:20         ` Frederic Barrat
2019-04-03 14:20           ` Frederic Barrat
2019-04-05  7:09         ` Andrew Donnellan
2019-04-05  7:09           ` Andrew Donnellan
2019-03-25  5:34       ` [PATCH v4 4/4] ocxl: Remove some unused exported symbols Alastair D'Silva
2019-03-25  5:34         ` Alastair D'Silva
2019-03-25 16:57         ` Greg Kurz
2019-03-25 16:57           ` Greg Kurz
2019-04-03 14:23         ` Frederic Barrat
2019-04-03 14:23           ` Frederic Barrat
2019-04-05  7:28         ` Andrew Donnellan
2019-04-05  7:28           ` Andrew Donnellan
2019-03-25 16:49       ` [PATCH v4 0/4] ocxl: OpenCAPI Cleanup Greg Kurz
2019-03-25 16:49         ` Greg Kurz
2019-03-25 17:34         ` Frederic Barrat
2019-03-25 17:34           ` Frederic Barrat
2019-03-25 21:45           ` Alastair D'Silva
2019-03-25 21:45             ` Alastair D'Silva
2019-03-25  5:44     ` [PATCH v3 0/7] Refactor OCXL driver to allow external drivers to use it Alastair D'Silva
2019-03-25  5:44       ` Alastair D'Silva
2019-03-25  5:44       ` [PATCH v3 1/7] ocxl: Split pci.c Alastair D'Silva
2019-03-25  5:44         ` Alastair D'Silva
2019-03-25 10:01         ` Frederic Barrat
2019-03-25 10:01           ` Frederic Barrat
2019-03-25  5:44       ` [PATCH v3 2/7] ocxl: Don't pass pci_dev around Alastair D'Silva
2019-03-25  5:44         ` Alastair D'Silva
2019-03-25 10:04         ` Frederic Barrat
2019-03-25 10:04           ` Frederic Barrat
2019-03-25  5:44       ` [PATCH v3 3/7] ocxl: Create a clear delineation between ocxl backend & frontend Alastair D'Silva
2019-03-25  5:44         ` Alastair D'Silva
2019-03-25 15:11         ` Frederic Barrat
2019-03-25 15:11           ` Frederic Barrat
2019-03-25  5:44       ` [PATCH v3 4/7] ocxl: Allow external drivers to use OpenCAPI contexts Alastair D'Silva
2019-03-25  5:44         ` Alastair D'Silva
2019-03-25 15:13         ` Frederic Barrat
2019-03-25 15:13           ` Frederic Barrat
2019-03-25  5:44       ` [PATCH v3 5/7] ocxl: afu_irq only deals with IRQ IDs, not offsets Alastair D'Silva
2019-03-25  5:44         ` Alastair D'Silva
2019-03-25 15:24         ` Frederic Barrat
2019-03-25 15:24           ` Frederic Barrat
2019-03-25  5:44       ` [PATCH v3 6/7] ocxl: move event_fd handling to frontend Alastair D'Silva
2019-03-25  5:44         ` Alastair D'Silva
2019-03-25 15:41         ` Frederic Barrat
2019-03-25 15:41           ` Frederic Barrat
2019-03-25  5:44       ` [PATCH v3 7/7] ocxl: Provide global MMIO accessors for external drivers Alastair D'Silva
2019-03-25  5:44         ` Alastair D'Silva
2019-03-25 15:49         ` Frederic Barrat
2019-03-25 15:49           ` Frederic Barrat

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