[PATCH] staging: erofs: formatting unzip_vle_lz4.c

[PATCH] staging: erofs: formatting unzip_vle_lz4.c

[Pavel Zemlyanoy]

This patch changes the coding style for unzip_vle_lz4.c,
following the accepted formatting rules.

Signed-off-by: Pavel Zemlyanoy <zemlyanoy@ispras.ru>
---
 drivers/staging/erofs/unzip_vle_lz4.c | 72 ++++++++++++++++++-----------------
 1 file changed, 37 insertions(+), 35 deletions(-)

diff --git a/drivers/staging/erofs/unzip_vle_lz4.c b/drivers/staging/erofs/unzip_vle_lz4.c
index f5b665f..34992f2 100644
--- a/drivers/staging/erofs/unzip_vle_lz4.c
+++ b/drivers/staging/erofs/unzip_vle_lz4.c
@@ -23,14 +23,14 @@ static struct {
 } erofs_pcpubuf[NR_CPUS];
 
 int z_erofs_vle_plain_copy(struct page **compressed_pages,
-			   unsigned clusterpages,
+			   unsigned int clusterpages,
 			   struct page **pages,
-			   unsigned nr_pages,
+			   unsigned int nr_pages,
 			   unsigned short pageofs)
 {
-	unsigned i, j;
+	unsigned int i, j;
 	void *src = NULL;
-	const unsigned righthalf = PAGE_SIZE - pageofs;
+	const unsigned int righthalf = PAGE_SIZE - pageofs;
 	char *percpu_data;
 	bool mirrored[Z_EROFS_CLUSTER_MAX_PAGES] = { 0 };
 
@@ -42,8 +42,8 @@ int z_erofs_vle_plain_copy(struct page **compressed_pages,
 		struct page *page = pages[i];
 		void *dst;
 
-		if (page == NULL) {
-			if (src != NULL) {
+		if (!page) {
+			if (src) {
 				if (!mirrored[j])
 					kunmap_atomic(src);
 				src = NULL;
@@ -64,14 +64,14 @@ int z_erofs_vle_plain_copy(struct page **compressed_pages,
 		}
 
 		if (i) {
-			if (src == NULL)
-				src = mirrored[i-1] ?
-					percpu_data + (i-1) * PAGE_SIZE :
-					kmap_atomic(compressed_pages[i-1]);
+			if (!src)
+				src = mirrored[i - 1] ?
+					percpu_data + (i - 1) * PAGE_SIZE :
+					kmap_atomic(compressed_pages[i - 1]);
 
 			memcpy(dst, src + righthalf, pageofs);
 
-			if (!mirrored[i-1])
+			if (!mirrored[i - 1])
 				kunmap_atomic(src);
 
 			if (unlikely(i >= clusterpages)) {
@@ -80,19 +80,19 @@ int z_erofs_vle_plain_copy(struct page **compressed_pages,
 			}
 		}
 
-		if (!righthalf)
+		if (!righthalf) {
 			src = NULL;
-		else {
+
+		} else {
 			src = mirrored[i] ? percpu_data + i * PAGE_SIZE :
 				kmap_atomic(compressed_pages[i]);
-
 			memcpy(dst + pageofs, src, righthalf);
 		}
 
 		kunmap_atomic(dst);
 	}
 
-	if (src != NULL && !mirrored[j])
+	if (src && !mirrored[j])
 		kunmap_atomic(src);
 
 	preempt_enable();
@@ -102,14 +102,14 @@ int z_erofs_vle_plain_copy(struct page **compressed_pages,
 extern int z_erofs_unzip_lz4(void *in, void *out, size_t inlen, size_t outlen);
 
 int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
-				  unsigned clusterpages,
+				  unsigned int clusterpages,
 				  struct page **pages,
-				  unsigned outlen,
+				  unsigned int outlen,
 				  unsigned short pageofs,
 				  void (*endio)(struct page *))
 {
 	void *vin, *vout;
-	unsigned nr_pages, i, j;
+	unsigned int nr_pages, i, j;
 	int ret;
 
 	if (outlen + pageofs > EROFS_PERCPU_NR_PAGES * PAGE_SIZE)
@@ -126,7 +126,8 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
 	vout = erofs_pcpubuf[smp_processor_id()].data;
 
 	ret = z_erofs_unzip_lz4(vin, vout + pageofs,
-		clusterpages * PAGE_SIZE, outlen);
+				clusterpages * PAGE_SIZE,
+				outlen);
 
 	if (ret >= 0) {
 		outlen = ret;
@@ -134,14 +135,15 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
 	}
 
 	for (i = 0; i < nr_pages; ++i) {
-		j = min((unsigned)PAGE_SIZE - pageofs, outlen);
+		j = min((unsigned int)PAGE_SIZE - pageofs, outlen);
 
-		if (pages[i] != NULL) {
-			if (ret < 0)
+		if (pages[i]) {
+			if (ret < 0) {
 				SetPageError(pages[i]);
-			else if (clusterpages == 1 && pages[i] == compressed_pages[0])
+			} else if (clusterpages == 1 &&
+					   pages[i] == compressed_pages[0]) {
 				memcpy(vin + pageofs, vout + pageofs, j);
-			else {
+			} else {
 				void *dst = kmap_atomic(pages[i]);
 
 				memcpy(dst + pageofs, vout + pageofs, j);
@@ -164,14 +166,14 @@ int z_erofs_vle_unzip_fast_percpu(struct page **compressed_pages,
 }
 
 int z_erofs_vle_unzip_vmap(struct page **compressed_pages,
-			   unsigned clusterpages,
+			   unsigned int clusterpages,
 			   void *vout,
-			   unsigned llen,
+			   unsigned int llen,
 			   unsigned short pageofs,
 			   bool overlapped)
 {
 	void *vin;
-	unsigned i;
+	unsigned int i;
 	int ret;
 
 	if (overlapped) {
@@ -181,29 +183,29 @@ int z_erofs_vle_unzip_vmap(struct page **compressed_pages,
 		for (i = 0; i < clusterpages; ++i) {
 			void *t = kmap_atomic(compressed_pages[i]);
 
-			memcpy(vin + PAGE_SIZE *i, t, PAGE_SIZE);
+			memcpy(vin + PAGE_SIZE * i, t, PAGE_SIZE);
 			kunmap_atomic(t);
 		}
-	} else if (clusterpages == 1)
+	} else if (clusterpages == 1) {
 		vin = kmap_atomic(compressed_pages[0]);
-	else {
+	} else {
 		vin = erofs_vmap(compressed_pages, clusterpages);
 	}
 
 	ret = z_erofs_unzip_lz4(vin, vout + pageofs,
-		clusterpages * PAGE_SIZE, llen);
+				clusterpages * PAGE_SIZE,
+				llen);
 	if (ret > 0)
 		ret = 0;
 
 	if (!overlapped) {
 		if (clusterpages == 1)
 			kunmap_atomic(vin);
-		else {
+		else
 			erofs_vunmap(vin, clusterpages);
-		}
-	} else
+	} else {
 		preempt_enable();
-
+	}
 	return ret;
 }
 
-- 
2.7.4

Re: [PATCH] staging: erofs: formatting unzip_vle_lz4.c

[Greg Kroah-Hartman]

On Thu, Aug 30, 2018 at 01:40:07PM +0300, Pavel Zemlyanoy wrote:
> This patch changes the coding style for unzip_vle_lz4.c,
> following the accepted formatting rules.
> 
> Signed-off-by: Pavel Zemlyanoy <zemlyanoy@ispras.ru>
> ---
>  drivers/staging/erofs/unzip_vle_lz4.c | 72 ++++++++++++++++++-----------------
>  1 file changed, 37 insertions(+), 35 deletions(-)

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created.  Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
as indicated below:

- Your patch did many different things all at once, making it difficult
  to review.  All Linux kernel patches need to only do one thing at a
  time.  If you need to do multiple things (such as clean up all coding
  style issues in a file/driver), do it in a sequence of patches, each
  one doing only one thing.  This will make it easier to review the
  patches to ensure that they are correct, and to help alleviate any
  merge issues that larger patches can cause.

- You did not specify a description of why the patch is needed, or
  possibly, any description at all, in the email body.  Please read the
  section entitled "The canonical patch format" in the kernel file,
  Documentation/SubmittingPatches for what is needed in order to
  properly describe the change.

If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.

thanks,

greg k-h's patch email bot