linux-kernel - Re: [PATCH char-misc-next 0/5] misc: mic: driver cleanups and a build fix.

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Date:	Fri, 27 Sep 2013 10:29:24 -0700
From:	Joe Perches <joe@...ches.com>
To:	Sudeep Dutt <sudeep.dutt@...el.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, Fengguang Wu <fengguang.wu@...el.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Nikhil Rao <nikhil.rao@...el.com>,
	Ashutosh Dixit <ashutosh.dixit@...el.com>,
	Dasaratharaman Chandramouli 
	<dasaratharaman.chandramouli@...el.com>,
	Harshavardhan R Kharche <harshavardhan.r.kharche@...el.com>,
	"Yaozu (Eddie) Dong" <eddie.dong@...el.com>,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
Subject: Re: [PATCH char-misc-next 0/5] misc: mic: driver cleanups and a
 build fix.

On Fri, 2013-09-27 at 09:49 -0700, Sudeep Dutt wrote:
> These patches address code review feedback received on the
> patch series @ https://lkml.org/lkml/2013/9/5/561 ,from:
> a) Greg Kroah-Hartman on sysfs and header file cleanups.
> b) Joe Perches on issues found by "--strict" checkpatch.
> 
> It should also fix the build failures on certain non X86
> architectures, reported in linux-next and 0-DAY builds.
> 
> Ashutosh Dixit (1):
>   misc: mic: cleanups for "--strict" checkpatch.
> 
> Sudeep Dutt (4):
>   misc: mic: host driver sysfs cleanups.
>   misc: mic: header file cleanups.
>   misc: mic: fix a warning in the IOCTL header file.
>   misc: mic: depend on X86 for both host and card drivers.
> 
>  Documentation/mic/mpssd/mpssd.c                    | 65 +++++++--------
>  Documentation/mic/mpssd/sysfs.c                    |  4 +-

Why are these in Documentation/ at all?
Shouldn't the directory be moved to tools/ ?

It doesn't build normally btw.

Also, there are some defects/shortcomings here:

 Documentation/mic/mpssd/mpssd.c | 7 ++++---
 Documentation/mic/mpssd/mpssd.h | 1 +
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
index 8064804..cb62663 100644
--- a/Documentation/mic/mpssd/mpssd.c
+++ b/Documentation/mic/mpssd/mpssd.c
@@ -379,7 +379,7 @@ disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
 	for (i = 0; i < copy->iovcnt; i++)
 		mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%lx\n",
 			mic->name, s, line, i,
-			copy->iov[i].iov_base, copy->iov[i].iov_len);
+			copy->iov[i].iov_base, (long)copy->iov[i].iov_len);
 }
 
 static inline __u16 read_avail_idx(struct mic_vring *vr)
@@ -953,7 +953,8 @@ set_backend_file(struct mic_info *mic)
 		return false;
 	mic->mic_virtblk.backend_file = malloc(strlen(evv) + 1);
 	if (mic->mic_virtblk.backend_file == NULL) {
-		mpsslog("can't allocate memory\n", mic->name, mic->id);
+		mpsslog("%s id %d - can't allocate memory\n",
+			mic->name, mic->id);
 		return false;
 	}
 	strcpy(mic->mic_virtblk.backend_file, evv + 1);
@@ -1026,7 +1027,7 @@ close_backend(struct mic_info *mic)
 static bool
 start_virtblk(struct mic_info *mic, struct mic_vring *vring)
 {
-	if (((__u64)&virtblk_dev_page.blk_config % 8) != 0) {
+	if (((__u64)(unsigned long)&virtblk_dev_page.blk_config % 8) != 0) {
 		mpsslog("%s: blk_config is not 8 byte aligned.\n",
 			mic->name);
 		return false;
diff --git a/Documentation/mic/mpssd/mpssd.h b/Documentation/mic/mpssd/mpssd.h
index b6dee38..ccd589f 100644
--- a/Documentation/mic/mpssd/mpssd.h
+++ b/Documentation/mic/mpssd/mpssd.h
@@ -94,6 +94,7 @@ struct mic_info {
 	struct mic_info *next;
 };
 
+__attribute__((format(printf, 1, 2)))
 void mpsslog(char *format, ...);
 char *readsysfs(char *dir, char *entry);
 int setsysfs(char *dir, char *entry, char *value);


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