[PATCH 2/2] staging:media: atomisp: Whitespaces cleanup in vmem.c

Adrian Barnaś posted 2 patches 1 month ago
There is a newer version of this series
[PATCH 2/2] staging:media: atomisp: Whitespaces cleanup in vmem.c
Posted by Adrian Barnaś 1 month ago
Whitespaces cleanup to conform with kernel style and improve readability.

Signed-off-by: Adrian Barnaś <abarnas@google.com>
---
 .../pci/hive_isp_css_common/host/vmem.c       | 91 ++++++-------------
 1 file changed, 27 insertions(+), 64 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/vmem.c b/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/vmem.c
index fd640e100591..d8a9aaa7b302 100644
--- a/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/vmem.c
+++ b/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/vmem.c
@@ -13,19 +13,18 @@
 #endif
 #include "assert_support.h"
 
-
 /* Copied from SDK: sim_semantics.c */
 
 /* subword bits move like this:         MSB[____xxxx____]LSB -> MSB[00000000xxxx]LSB */
-static inline unsigned long long
-subword(unsigned long long w, unsigned int start, unsigned int end)
+static inline unsigned long long subword(unsigned long long w, unsigned int start,
+					 unsigned int end)
 {
 	return (w & (((1ULL << (end - 1)) - 1) << 1 | 1)) >> start;
 }
 
 /* inverse subword bits move like this: MSB[xxxx____xxxx]LSB -> MSB[xxxx0000xxxx]LSB */
-static inline unsigned long long
-inv_subword(unsigned long long w, unsigned int start, unsigned int end)
+static inline unsigned long long inv_subword(unsigned long long w, unsigned int start,
+					     unsigned int end)
 {
 	return w & (~(((1ULL << (end - 1)) - 1) << 1 | 1) | ((1ULL << start) - 1));
 }
@@ -35,13 +34,8 @@ inv_subword(unsigned long long w, unsigned int start, unsigned int end)
 #define move_upper_bits(target, target_bit, src, src_bit) move_subword(target, target_bit, src, src_bit, uedge_bits)
 #define move_word(target, target_bit, src) move_subword(target, target_bit, src, 0, uedge_bits)
 
-static void
-move_subword(
-    unsigned long long *target,
-    unsigned int target_bit,
-    unsigned long long src,
-    unsigned int src_start,
-    unsigned int src_end)
+static void move_subword(unsigned long long *target, unsigned int target_bit,
+			 unsigned long long src, unsigned int src_start, unsigned int src_end)
 {
 	unsigned int start_elem = target_bit / uedge_bits;
 	unsigned int start_bit  = target_bit % uedge_bits;
@@ -51,7 +45,8 @@ move_subword(
 
 	if (subword_width + start_bit > uedge_bits) { /* overlap */
 		unsigned long long old_val1;
-		unsigned long long old_val0 = inv_subword(target[start_elem], start_bit, uedge_bits);
+		unsigned long long old_val0 = inv_subword(target[start_elem],
+							  start_bit, uedge_bits);
 
 		target[start_elem] = old_val0 | (src_subword << start_bit);
 		old_val1 = inv_subword(target[start_elem + 1], 0,
@@ -59,18 +54,14 @@ move_subword(
 		target[start_elem + 1] = old_val1 | (src_subword >> (uedge_bits - start_bit));
 	} else {
 		unsigned long long old_val = inv_subword(target[start_elem], start_bit,
-						 start_bit + subword_width);
+							 start_bit + subword_width);
 
 		target[start_elem] = old_val | (src_subword << start_bit);
 	}
 }
 
-static void
-hive_sim_wide_unpack(
-    unsigned long long *vector,
-    unsigned long long *elem,
-    hive_uint elem_bits,
-    hive_uint index)
+static void hive_sim_wide_unpack(unsigned long long *vector, unsigned long long *elem,
+				 hive_uint elem_bits, hive_uint index)
 {
 	/* pointers into wide_type: */
 	unsigned int start_elem = (elem_bits * index) / uedge_bits;
@@ -99,12 +90,8 @@ hive_sim_wide_unpack(
 	}
 }
 
-static void
-hive_sim_wide_pack(
-    unsigned long long *vector,
-    unsigned long long *elem,
-    hive_uint elem_bits,
-    hive_uint index)
+static void hive_sim_wide_pack(unsigned long long *vector, unsigned long long *elem,
+			       hive_uint elem_bits, hive_uint index)
 {
 	/* pointers into wide_type: */
 	unsigned int start_elem = (elem_bits * index) / uedge_bits;
@@ -128,10 +115,7 @@ hive_sim_wide_pack(
 	}
 }
 
-static void load_vector(
-    const isp_ID_t		ID,
-    t_vmem_elem		*to,
-    const t_vmem_elem	*from)
+static void load_vector(const isp_ID_t ID, t_vmem_elem *to, const t_vmem_elem *from)
 {
 	unsigned int i;
 	unsigned long long *data;
@@ -154,10 +138,7 @@ static void load_vector(
 	udelay(1); /* Spend at least 1 cycles per vector */
 }
 
-static void store_vector(
-    const isp_ID_t		ID,
-    t_vmem_elem		*to,
-    const t_vmem_elem	*from)
+static void store_vector(const isp_ID_t ID, t_vmem_elem *to, const t_vmem_elem *from)
 {
 	unsigned int i;
 	unsigned int size = sizeof(short) * ISP_NWAY;
@@ -166,9 +147,9 @@ static void store_vector(
 	//load_vector (&v[1][0], &to[ISP_NWAY]); /* Fetch the next vector, since it will be overwritten. */
 	unsigned long long *data = (unsigned long long *)v;
 
-	for (i = 0; i < ISP_NWAY; i++) {
+	for (i = 0; i < ISP_NWAY; i++)
 		hive_sim_wide_pack(data, (unsigned long long *)&from[i], ISP_VEC_ELEMBITS, i);
-	}
+
 	assert(ISP_BAMEM_BASE[ID] != (hrt_address) - 1);
 #if !defined(HRT_MEMORY_ACCESS)
 	ia_css_device_store(ISP_BAMEM_BASE[ID] + (unsigned long)to, &v, size);
@@ -179,11 +160,8 @@ static void store_vector(
 	udelay(1); /* Spend at least 1 cycles per vector */
 }
 
-void isp_vmem_load(
-    const isp_ID_t		ID,
-    const t_vmem_elem	*from,
-    t_vmem_elem		*to,
-    unsigned int elems) /* In t_vmem_elem */
+void isp_vmem_load(const isp_ID_t ID, const t_vmem_elem *from, t_vmem_elem *to,
+		   unsigned int elems) /* In t_vmem_elem */
 {
 	unsigned int c;
 	const t_vmem_elem *vp = from;
@@ -197,11 +175,8 @@ void isp_vmem_load(
 	}
 }
 
-void isp_vmem_store(
-    const isp_ID_t		ID,
-    t_vmem_elem		*to,
-    const t_vmem_elem	*from,
-    unsigned int elems) /* In t_vmem_elem */
+void isp_vmem_store(const isp_ID_t ID, t_vmem_elem *to, const t_vmem_elem *from,
+		    unsigned int elems) /* In t_vmem_elem */
 {
 	unsigned int c;
 	t_vmem_elem *vp = to;
@@ -215,15 +190,9 @@ void isp_vmem_store(
 	}
 }
 
-void isp_vmem_2d_load(
-    const isp_ID_t		ID,
-    const t_vmem_elem	*from,
-    t_vmem_elem		*to,
-    unsigned int height,
-    unsigned int width,
-    unsigned int stride_to,  /* In t_vmem_elem */
-
-    unsigned stride_from /* In t_vmem_elem */)
+void isp_vmem_2d_load(const isp_ID_t ID, const t_vmem_elem *from, t_vmem_elem *to,
+		      unsigned int height, unsigned int width,
+		      unsigned int stride_to, unsigned int stride_from) /* In t_vmem_elem */
 {
 	unsigned int h;
 
@@ -244,15 +213,9 @@ void isp_vmem_2d_load(
 	}
 }
 
-void isp_vmem_2d_store(
-    const isp_ID_t		ID,
-    t_vmem_elem		*to,
-    const t_vmem_elem	*from,
-    unsigned int height,
-    unsigned int width,
-    unsigned int stride_to,  /* In t_vmem_elem */
-
-    unsigned stride_from /* In t_vmem_elem */)
+void isp_vmem_2d_store(const isp_ID_t ID, t_vmem_elem *to, const t_vmem_elem *from,
+		       unsigned int height, unsigned int width,
+		       unsigned int stride_to, unsigned int stride_from) /* In t_vmem_elem */
 {
 	unsigned int h;
 
-- 
2.51.0.318.gd7df087d1a-goog
Re: [PATCH 2/2] staging:media: atomisp: Whitespaces cleanup in vmem.c
Posted by Andy Shevchenko 1 month ago
On Mon, Sep 01, 2025 at 09:10:50AM +0000, Adrian Barnaś wrote:
> Whitespaces cleanup to conform with kernel style and improve readability.

Strange...

...

>  /* subword bits move like this:         MSB[____xxxx____]LSB -> MSB[00000000xxxx]LSB */
> -static inline unsigned long long
> -subword(unsigned long long w, unsigned int start, unsigned int end)
> +static inline unsigned long long subword(unsigned long long w, unsigned int start,
> +					 unsigned int end)
>  {
>  	return (w & (((1ULL << (end - 1)) - 1) << 1 | 1)) >> start;
>  }
>  
>  /* inverse subword bits move like this: MSB[xxxx____xxxx]LSB -> MSB[xxxx0000xxxx]LSB */
> -static inline unsigned long long
> -inv_subword(unsigned long long w, unsigned int start, unsigned int end)
> +static inline unsigned long long inv_subword(unsigned long long w, unsigned int start,
> +					     unsigned int end)
>  {
>  	return w & (~(((1ULL << (end - 1)) - 1) << 1 | 1) | ((1ULL << start) - 1));
>  }

These two were just "fixed according to the kernel coding style" and here
again. This is odd.

Note, the style after the first patch is okay. I dunno what's wrong with it.

...

> -void isp_vmem_load(
> -    const isp_ID_t		ID,
> -    const t_vmem_elem	*from,
> -    t_vmem_elem		*to,
> -    unsigned int elems) /* In t_vmem_elem */
> +void isp_vmem_load(const isp_ID_t ID, const t_vmem_elem *from, t_vmem_elem *to,
> +		   unsigned int elems) /* In t_vmem_elem */

Please, (re)move trailing comments somewhere else.

-- 
With Best Regards,
Andy Shevchenko


Re: [PATCH 2/2] staging:media: atomisp: Whitespaces cleanup in vmem.c
Posted by Adrian Barnaś 1 month ago
On Mon, Sep 1, 2025 at 2:23 PM Andy Shevchenko
<andriy.shevchenko@intel.com> wrote:
>
> On Mon, Sep 01, 2025 at 09:10:50AM +0000, Adrian Barnaś wrote:
> > Whitespaces cleanup to conform with kernel style and improve readability.
>
> Strange...

You mean the commit description? Should I reword it?

> >  /* subword bits move like this:         MSB[____xxxx____]LSB -> MSB[00000000xxxx]LSB */
> > -static inline unsigned long long
> > -subword(unsigned long long w, unsigned int start, unsigned int end)
> > +static inline unsigned long long subword(unsigned long long w, unsigned int start,
> > +                                      unsigned int end)
> >  {
> >       return (w & (((1ULL << (end - 1)) - 1) << 1 | 1)) >> start;
> >  }
> >
> >  /* inverse subword bits move like this: MSB[xxxx____xxxx]LSB -> MSB[xxxx0000xxxx]LSB */
> > -static inline unsigned long long
> > -inv_subword(unsigned long long w, unsigned int start, unsigned int end)
> > +static inline unsigned long long inv_subword(unsigned long long w, unsigned int start,
> > +                                          unsigned int end)
> >  {
> >       return w & (~(((1ULL << (end - 1)) - 1) << 1 | 1) | ((1ULL << start) - 1));
> >  }
>
> These two were just "fixed according to the kernel coding style" and here
> again. This is odd.
>
> Note, the style after the first patch is okay. I dunno what's wrong with it.

Those were not violate the kernel code style indeed, but it looks more
consistent this way for me.
Should I revert those?

> ...
>
> > -void isp_vmem_load(
> > -    const isp_ID_t           ID,
> > -    const t_vmem_elem        *from,
> > -    t_vmem_elem              *to,
> > -    unsigned int elems) /* In t_vmem_elem */
> > +void isp_vmem_load(const isp_ID_t ID, const t_vmem_elem *from, t_vmem_elem *to,
> > +                unsigned int elems) /* In t_vmem_elem */
>
> Please, (re)move trailing comments somewhere else.

Those comments are also in header so in my opinion we could get rid of
them here.

Thank you for a review
Adrian Barnaś
Re: [PATCH 2/2] staging:media: atomisp: Whitespaces cleanup in vmem.c
Posted by Andy Shevchenko 1 month ago
On Mon, Sep 01, 2025 at 02:46:47PM +0200, Adrian Barnaś wrote:
> On Mon, Sep 1, 2025 at 2:23 PM Andy Shevchenko
> <andriy.shevchenko@intel.com> wrote:
> > On Mon, Sep 01, 2025 at 09:10:50AM +0000, Adrian Barnaś wrote:
> > > Whitespaces cleanup to conform with kernel style and improve readability.

> > Strange...
> 
> You mean the commit description? Should I reword it?

No, the case I explained below.

> > Note, the style after the first patch is okay. I dunno what's wrong with it.
> 
> Those were not violate the kernel code style indeed, but it looks more
> consistent this way for me.
> Should I revert those?

If you are talking about the second patch changes in the same functions, yes,
please, keep them untouched _after_ the patch 1.

-- 
With Best Regards,
Andy Shevchenko