From: Greg Kurz <groug@kaod.org>
To: "Alastair D'Silva" <alastair@d-silva.org>
Cc: "'Baoquan He'" <bhe@redhat.com>,
"'Alastair D'Silva'" <alastair@au1.ibm.com>,
"'Aneesh Kumar K . V'" <aneesh.kumar@linux.ibm.com>,
"'Oliver O'Halloran'" <oohall@gmail.com>,
"'Benjamin Herrenschmidt'" <benh@kernel.crashing.org>,
"'Paul Mackerras'" <paulus@samba.org>,
"'Michael Ellerman'" <mpe@ellerman.id.au>,
"'Frederic Barrat'" <fbarrat@linux.ibm.com>,
"'Andrew Donnellan'" <ajd@linux.ibm.com>,
"'Arnd Bergmann'" <arnd@arndb.de>,
"'Greg Kroah-Hartman'" <gregkh@linuxfoundation.org>,
"'Dan Williams'" <dan.j.williams@intel.com>,
"'Vishal Verma'" <vishal.l.verma@intel.com>,
"'Dave Jiang'" <dave.jiang@intel.com>,
"'Ira Weiny'" <ira.weiny@intel.com>,
"'Andrew Morton'" <akpm@linux-foundation.org>,
"'Mauro Carvalho Chehab'" <mchehab+samsung@kernel.org>,
"'David S. Miller'" <davem@davemloft.net>,
"'Rob Herring'" <robh@kernel.org>,
"'Anton Blanchard'" <anton@ozlabs.org>,
"'Krzysztof Kozlowski'" <krzk@kernel.org>,
"'Mahesh Salgaonkar'" <mahesh@linux.vnet.ibm.com>,
"'Madhavan Srinivasan'" <maddy@linux.vnet.ibm.com>,
"'Cédric Le Goater'" <clg@kaod.org>,
"'Anju T Sudhakar'" <anju@linux.vnet.ibm.com>,
"'Hari Bathini'" <hbathini@linux.ibm.com>,
"'Thomas Gleixner'" <tglx@linutronix.de>,
"'Nicholas Piggin'" <npiggin@gmail.com>,
"'Masahiro Yamada'" <yamada.masahiro@socionext.com>,
"'Alexey Kardashevskiy'" <aik@ozlabs.ru>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-nvdimm@lists.01.org, linux-mm@kvack.org
Subject: Re: [PATCH v3 04/27] ocxl: Remove unnecessary externs
Date: Wed, 26 Feb 2020 10:01:02 +0100 [thread overview]
Message-ID: <20200226100102.0aab7dda@bahia.home> (raw)
In-Reply-To: <4d49801d5ec7e$7a3e8610$6ebb9230$@d-silva.org>
On Wed, 26 Feb 2020 19:26:34 +1100
"Alastair D'Silva" <alastair@d-silva.org> wrote:
> > -----Original Message-----
> > From: Baoquan He <bhe@redhat.com>
> > Sent: Wednesday, 26 February 2020 7:15 PM
> > To: Alastair D'Silva <alastair@au1.ibm.com>
> > Cc: alastair@d-silva.org; Aneesh Kumar K . V
> > <aneesh.kumar@linux.ibm.com>; Oliver O'Halloran <oohall@gmail.com>;
> > Benjamin Herrenschmidt <benh@kernel.crashing.org>; Paul Mackerras
> > <paulus@samba.org>; Michael Ellerman <mpe@ellerman.id.au>; Frederic
> > Barrat <fbarrat@linux.ibm.com>; Andrew Donnellan <ajd@linux.ibm.com>;
> > Arnd Bergmann <arnd@arndb.de>; Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org>; Dan Williams <dan.j.williams@intel.com>;
> > Vishal Verma <vishal.l.verma@intel.com>; Dave Jiang
> > <dave.jiang@intel.com>; Ira Weiny <ira.weiny@intel.com>; Andrew Morton
> > <akpm@linux-foundation.org>; Mauro Carvalho Chehab
> > <mchehab+samsung@kernel.org>; David S. Miller <davem@davemloft.net>;
> > Rob Herring <robh@kernel.org>; Anton Blanchard <anton@ozlabs.org>;
> > Krzysztof Kozlowski <krzk@kernel.org>; Mahesh Salgaonkar
> > <mahesh@linux.vnet.ibm.com>; Madhavan Srinivasan
> > <maddy@linux.vnet.ibm.com>; Cédric Le Goater <clg@kaod.org>; Anju T
> > Sudhakar <anju@linux.vnet.ibm.com>; Hari Bathini
> > <hbathini@linux.ibm.com>; Thomas Gleixner <tglx@linutronix.de>; Greg
> > Kurz <groug@kaod.org>; Nicholas Piggin <npiggin@gmail.com>; Masahiro
> > Yamada <yamada.masahiro@socionext.com>; Alexey Kardashevskiy
> > <aik@ozlabs.ru>; linux-kernel@vger.kernel.org; linuxppc-
> > dev@lists.ozlabs.org; linux-nvdimm@lists.01.org; linux-mm@kvack.org
> > Subject: Re: [PATCH v3 04/27] ocxl: Remove unnecessary externs
> >
> > On 02/21/20 at 02:26pm, Alastair D'Silva wrote:
> > > From: Alastair D'Silva <alastair@d-silva.org>
> > >
> > > Function declarations don't need externs, remove the existing ones so
> > > they are consistent with newer code
> > >
> > > Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
> > > ---
> > > arch/powerpc/include/asm/pnv-ocxl.h | 32 ++++++++++++++---------------
> > > include/misc/ocxl.h | 6 +++---
> > > 2 files changed, 18 insertions(+), 20 deletions(-)
> > >
> > > diff --git a/arch/powerpc/include/asm/pnv-ocxl.h
> > > b/arch/powerpc/include/asm/pnv-ocxl.h
> > > index 0b2a6707e555..b23c99bc0c84 100644
> > > --- a/arch/powerpc/include/asm/pnv-ocxl.h
> > > +++ b/arch/powerpc/include/asm/pnv-ocxl.h
> > > @@ -9,29 +9,27 @@
> > > #define PNV_OCXL_TL_BITS_PER_RATE 4
> > > #define PNV_OCXL_TL_RATE_BUF_SIZE
> > ((PNV_OCXL_TL_MAX_TEMPLATE+1) * PNV_OCXL_TL_BITS_PER_RATE / 8)
> > >
> > > -extern int pnv_ocxl_get_actag(struct pci_dev *dev, u16 *base, u16
> > *enabled,
> > > - u16 *supported);
> >
> > It works w or w/o extern when declare functions. Searching 'extern'
> > under include can find so many functions with 'extern' adding. Do we have
> a
> > explicit standard if we should add or remove 'exter' in function
> declaration?
> >
> > I have no objection to this patch, just want to make clear so that I can
> handle
> > it w/o confusion.
> >
> > Thanks
> > Baoquan
> >
>
> For the OpenCAPI driver, we have settled on not having 'extern' on
> functions.
>
> I don't think I've seen a standard that supports or refutes this, but it
> does not value add.
>
FWIW this is a warning condition for checkpatch:
$ ./scripts/checkpatch.pl --strict -f include/misc/ocxl.h
[...]
CHECK: extern prototypes should be avoided in .h files
#176: FILE: include/misc/ocxl.h:176:
+extern int ocxl_afu_irq_alloc(struct ocxl_context *ctx, int *irq_id);
[...]
next prev parent reply other threads:[~2020-02-26 11:30 UTC|newest]
Thread overview: 130+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-21 3:26 [PATCH v3 00/27] Add support for OpenCAPI Persistent Memory devices Alastair D'Silva
2020-02-21 3:26 ` [PATCH v3 01/27] powerpc: Add OPAL calls for LPC memory alloc/release Alastair D'Silva
2020-02-24 5:49 ` Andrew Donnellan
2020-02-24 5:50 ` Alastair D'Silva
2020-02-21 3:26 ` [PATCH v3 02/27] mm/memory_hotplug: Allow check_hotplug_memory_addressable to be called from drivers Alastair D'Silva
2020-02-21 7:03 ` Andrew Donnellan
2020-02-21 3:26 ` [PATCH v3 03/27] powerpc: Map & release OpenCAPI LPC memory Alastair D'Silva
2020-02-24 2:51 ` Andrew Donnellan
2020-02-24 5:49 ` Andrew Donnellan
2020-02-25 10:02 ` Frederic Barrat
2020-02-26 0:19 ` Alastair D'Silva
2020-03-03 6:10 ` Andrew Donnellan
2020-03-04 5:33 ` Alastair D'Silva
2020-02-21 3:26 ` [PATCH v3 04/27] ocxl: Remove unnecessary externs Alastair D'Silva
2020-02-21 6:06 ` Andrew Donnellan
2020-02-25 13:23 ` Frederic Barrat
2020-02-26 8:14 ` Baoquan He
2020-02-26 8:26 ` Alastair D'Silva
2020-02-26 9:01 ` Greg Kurz [this message]
2020-02-26 14:15 ` 'Baoquan He'
2020-02-26 14:20 ` Greg Kurz
2020-02-26 14:54 ` 'Baoquan He'
2020-02-21 3:26 ` [PATCH v3 05/27] ocxl: Address kernel doc errors & warnings Alastair D'Silva
2020-02-24 2:11 ` Andrew Donnellan
2020-02-21 3:26 ` [PATCH v3 06/27] ocxl: Tally up the LPC memory on a link & allow it to be mapped Alastair D'Silva
2020-02-24 5:25 ` Andrew Donnellan
2020-02-24 5:36 ` Alastair D'Silva
2020-02-25 16:30 ` Frederic Barrat
2020-02-26 0:29 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 07/27] ocxl: Add functions to map/unmap LPC memory Alastair D'Silva
2020-02-24 6:02 ` Andrew Donnellan
2020-02-24 6:08 ` Alastair D'Silva
2020-02-25 17:01 ` Frederic Barrat
2020-02-21 3:27 ` [PATCH v3 08/27] ocxl: Emit a log message showing how much LPC memory was detected Alastair D'Silva
2020-02-24 6:06 ` Andrew Donnellan
2020-02-24 6:10 ` Alastair D'Silva
2020-02-24 6:13 ` Andrew Donnellan
2020-02-25 17:03 ` Frederic Barrat
2020-02-21 3:27 ` [PATCH v3 09/27] ocxl: Save the device serial number in ocxl_fn Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 10/27] powerpc: Add driver for OpenCAPI Persistent Memory Alastair D'Silva
2020-02-26 5:07 ` Andrew Donnellan
2020-02-26 5:49 ` Alastair D'Silva
2020-02-27 20:44 ` Frederic Barrat
2020-02-28 0:54 ` Alastair D'Silva
2020-02-28 18:32 ` Frederic Barrat
2020-02-21 3:27 ` [PATCH v3 11/27] powerpc: Enable the OpenCAPI Persistent Memory driver for powernv_defconfig Alastair D'Silva
2020-02-25 3:01 ` Andrew Donnellan
2020-02-21 3:27 ` [PATCH v3 12/27] powerpc/powernv/pmem: Add register addresses & status values to the header Alastair D'Silva
2020-02-27 5:08 ` Andrew Donnellan
2020-02-27 5:16 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 13/27] powerpc/powernv/pmem: Read the capability registers & wait for device ready Alastair D'Silva
2020-02-27 3:54 ` Andrew Donnellan
2020-02-27 3:58 ` Alastair D'Silva
2020-03-02 17:51 ` Frederic Barrat
2020-03-04 4:15 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 14/27] powerpc/powernv/pmem: Add support for Admin commands Alastair D'Silva
2020-02-27 8:22 ` Andrew Donnellan
2020-02-27 8:27 ` Andrew Donnellan
2020-02-27 23:54 ` Alastair D'Silva
2020-02-27 23:51 ` Alastair D'Silva
2020-02-27 17:01 ` Dan Williams
2020-02-27 23:57 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 15/27] powerpc/powernv/pmem: Add support for near storage commands Alastair D'Silva
2020-02-27 8:30 ` Andrew Donnellan
2020-02-27 23:56 ` Alastair D'Silva
2020-02-27 17:02 ` Dan Williams
2020-03-02 17:58 ` Frederic Barrat
2020-03-02 18:42 ` Dan Williams
2020-03-04 4:42 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 16/27] powerpc/powernv/pmem: Register a character device for userspace to interact with Alastair D'Silva
2020-03-02 5:34 ` Andrew Donnellan
2020-03-02 6:05 ` Alastair D'Silva
2020-03-03 9:28 ` Frederic Barrat
2020-03-05 3:38 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 17/27] powerpc/powernv/pmem: Implement the Read Error Log command Alastair D'Silva
2020-03-03 10:36 ` Frederic Barrat
2020-03-05 4:31 ` Alastair D'Silva
2020-03-05 9:33 ` Frederic Barrat
2020-03-04 5:58 ` Andrew Donnellan
2020-02-21 3:27 ` [PATCH v3 18/27] powerpc/powernv/pmem: Add controller dump IOCTLs Alastair D'Silva
2020-03-03 18:04 ` Frederic Barrat
2020-03-05 23:37 ` Alastair D'Silva
2020-03-04 6:53 ` Andrew Donnellan
2020-03-06 3:34 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 19/27] powerpc/powernv/pmem: Add an IOCTL to report controller statistics Alastair D'Silva
2020-03-04 9:25 ` Frederic Barrat
2020-03-12 0:15 ` Alastair D'Silva
2020-03-05 0:46 ` Andrew Donnellan
2020-03-12 4:47 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 20/27] powerpc/powernv/pmem: Forward events to userspace Alastair D'Silva
2020-03-03 7:02 ` Andrew Donnellan
2020-03-04 5:48 ` Alastair D'Silva
2020-03-04 11:00 ` Frederic Barrat
2020-03-11 3:32 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 21/27] powerpc/powernv/pmem: Add an IOCTL to request controller health & perf data Alastair D'Silva
2020-02-28 6:12 ` Andrew Donnellan
2020-03-02 5:40 ` Alastair D'Silva
2020-03-04 11:06 ` Frederic Barrat
2020-03-11 3:38 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 22/27] powerpc/powernv/pmem: Implement the heartbeat command Alastair D'Silva
2020-02-28 6:20 ` Andrew Donnellan
2020-03-04 14:25 ` Frederic Barrat
2020-02-21 3:27 ` [PATCH v3 23/27] powerpc/powernv/pmem: Add debug IOCTLs Alastair D'Silva
2020-03-04 15:21 ` Frederic Barrat
2020-03-12 4:24 ` Alastair D'Silva
2020-03-05 3:11 ` Andrew Donnellan
2020-03-12 4:58 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 24/27] powerpc/powernv/pmem: Expose SMART data via ndctl Alastair D'Silva
2020-03-04 15:40 ` Frederic Barrat
2020-03-05 3:36 ` Andrew Donnellan
2020-03-12 23:14 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 25/27] powerpc/powernv/pmem: Expose the serial number in sysfs Alastair D'Silva
2020-02-28 6:25 ` Andrew Donnellan
2020-02-28 7:15 ` Greg Kroah-Hartman
2020-03-01 23:42 ` Alastair D'Silva
2020-03-02 5:38 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 26/27] powerpc/powernv/pmem: Expose the firmware version " Alastair D'Silva
2020-03-02 7:35 ` Andrew Donnellan
2020-03-04 4:11 ` Alastair D'Silva
2020-02-21 3:27 ` [PATCH v3 27/27] MAINTAINERS: Add myself & nvdimm/ocxl to ocxl Alastair D'Silva
2020-02-21 5:35 ` Andrew Donnellan
2020-02-21 16:21 ` [PATCH v3 00/27] Add support for OpenCAPI Persistent Memory devices Dan Williams
2020-02-21 16:24 ` Dan Williams
2020-02-24 4:34 ` Alastair D'Silva
2020-02-24 4:37 ` Matthew Wilcox
2020-02-24 4:42 ` Alastair D'Silva
2020-02-24 6:51 ` Oliver O'Halloran
2020-02-26 0:13 ` Alastair D'Silva
2020-02-26 0:32 ` Dan Williams
2020-02-26 0:35 ` Alastair D'Silva
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