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Re: [Qemu-devel] [PATCH v1 1/8] Replace all occurances of __FUNCTION__ w


From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH v1 1/8] Replace all occurances of __FUNCTION__ with __func__
Date: Tue, 26 Sep 2017 08:32:09 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0

On 09/25/2017 07:08 PM, Alistair Francis wrote:
> Replace all occurs of __FUNCTION__ except for the check in checkpatch
> with the non GCC specific __func__.
> 
> One line in hcd-musb.c was manually tweaked to pass checkpatch.
> 
> Signed-off-by: Alistair Francis <address@hidden>
> Cc: Gerd Hoffmann <address@hidden>
> Cc: Andrzej Zaborowski <address@hidden>
> Cc: Stefano Stabellini <address@hidden>
> Cc: Anthony Perard <address@hidden>
> Cc: John Snow <address@hidden>
> Cc: Aurelien Jarno <address@hidden>
> Cc: Yongbok Kim <address@hidden>
> Cc: Peter Crosthwaite <address@hidden>
> Cc: Stefan Hajnoczi <address@hidden> (supporter:Block
> Cc: Fam Zheng <address@hidden> (supporter:Block

That looks funny, with no closing ).  Something's breaking down between
get_maintainers.pl and your eventual email, although it's not fatal.

> Cc: Juan Quintela <address@hidden>
> Cc: "Dr. David Alan Gilbert" <address@hidden>
> Cc: address@hidden
> Cc: address@hidden
> Cc: address@hidden
> ---
> 

>  65 files changed, 273 insertions(+), 273 deletions(-)

Big but mechanical, so I'm okay without splitting it further.

> 
> diff --git a/audio/audio_int.h b/audio/audio_int.h
> index 5bcb1c60e1..543b1bd8d5 100644
> --- a/audio/audio_int.h
> +++ b/audio/audio_int.h
> @@ -253,7 +253,7 @@ static inline int audio_ring_dist (int dst, int src, int 
> len)
>  #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
>  
>  #if defined _MSC_VER || defined __GNUC__
> -#define AUDIO_FUNC __FUNCTION__
> +#define AUDIO_FUNC __func__
>  #else
>  #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
>  #endif

This can be further simplified.  We really aren't using _MSC_VER as our
compiler (can anyone prove me wrong?), and we DO require a C99 compiler
(per C99 6.4.2.2, __func__ support is mandatory), so we don't really
need the #else branch (or, for that matter, we probably don't even need
AUDIO_FUNC).  But to keep this patch mechanical, that can be a separate
followup.

> diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
> index 58005b6619..32687afced 100644
> --- a/hw/arm/nseries.c
> +++ b/hw/arm/nseries.c
> @@ -463,7 +463,7 @@ static uint32_t mipid_txrx(void *opaque, uint32_t cmd, 
> int len)
>      uint8_t ret;
>  
>      if (len > 9) {
> -        hw_error("%s: FIXME: bad SPI word width %i\n", __FUNCTION__, len);
> +        hw_error("%s: FIXME: bad SPI word width %i\n", __func__, len);

Not this patch's problem, but it would probably be simpler if hw_error()
were a macro that automatically prefixed __func__, rather than making
every caller have to supply it themselves.

> +++ b/hw/arm/omap1.c

> @@ -1716,7 +1716,7 @@ static void omap_clkm_write(void *opaque, hwaddr addr,
>      case 0x18:       /* ARM_SYSST */
>          if ((s->clkm.clocking_scheme ^ (value >> 11)) & 7) {
>              s->clkm.clocking_scheme = (value >> 11) & 7;
> -            printf("%s: clocking scheme set to %s\n", __FUNCTION__,
> +            printf("%s: clocking scheme set to %s\n", __func__,
>                              clkschemename[s->clkm.clocking_scheme]);

Worth fixing the indentation while you are here?

> @@ -2473,7 +2473,7 @@ static void omap_pwt_write(void *opaque, hwaddr addr,
>      case 0x04:       /* VRC */
>          if ((value ^ s->vrc) & 1) {
>              if (value & 1)
> -                printf("%s: %iHz buzz on\n", __FUNCTION__, (int)
> +                printf("%s: %iHz buzz on\n", __func__, (int)
>                                  /* 1.5 MHz from a 12-MHz or 13-MHz PWT_CLK */
>                                  ((omap_clk_getrate(s->clk) >> 3) /
>                                   /* Pre-multiplexer divider */

Likewise?

> @@ -3330,13 +3330,13 @@ static void omap_mcbsp_writeh(void *opaque, hwaddr 
> addr,
>          s->mcr[1] = value & 0x03e3;
>          if (value & 3)                                       /* XMCM */
>              printf("%s: Tx channel selection mode enable attempt\n",
> -                            __FUNCTION__);
> +                            __func__);
>          return;
>      case 0x1a:       /* MCR1 */
>          s->mcr[0] = value & 0x03e1;
>          if (value & 1)                                       /* RMCM */
>              printf("%s: Rx channel selection mode enable attempt\n",
> -                            __FUNCTION__);
> +                            __func__);

and again


> +++ b/hw/arm/omap2.c
> @@ -1312,7 +1312,7 @@ static void omap_prcm_apll_update(struct omap_prcm_s *s)
>  
>      if (mode[0] == 1 || mode[0] == 2 || mode[1] == 1 || mode[1] == 2)
>          fprintf(stderr, "%s: bad EN_54M_PLL or bad EN_96M_PLL\n",
> -                        __FUNCTION__);
> +                        __func__);

More of the same. I'll quit pointing it out.


> +++ b/hw/block/onenand.c
> @@ -661,12 +661,12 @@ static uint64_t onenand_read(void *opaque, hwaddr addr,
>      case 0xff02:     /* ECC Result of spare area data */
>      case 0xff03:     /* ECC Result of main area data */
>      case 0xff04:     /* ECC Result of spare area data */
> -        hw_error("%s: imeplement ECC\n", __FUNCTION__);
> +        hw_error("%s: imeplement ECC\n", __func__);

Should we fix the typo while here? s/imeplement/implement/

> +++ b/hw/isa/vt82c686.c
> @@ -30,7 +30,7 @@
>  //#define DEBUG_VT82C686B
>  
>  #ifdef DEBUG_VT82C686B
> -#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, 
> ##__VA_ARGS__)
> +#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __func__, 
> ##__VA_ARGS__)
>  #else
>  #define DPRINTF(fmt, ...)
>  #endif

Not this patch's problem, but I hate bit-rottable statements.  This
should be fixed separately into a form that always evaluates under
-Wformat (guarded by an if(0) in normal builds).

> diff --git a/hw/mips/gt64xxx_pci.c b/hw/mips/gt64xxx_pci.c
> index e8b2eef688..41a7690560 100644
> --- a/hw/mips/gt64xxx_pci.c
> +++ b/hw/mips/gt64xxx_pci.c
> @@ -33,7 +33,7 @@
>  //#define DEBUG
>  
>  #ifdef DEBUG
> -#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, 
> ##__VA_ARGS__)
> +#define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __func__, 
> ##__VA_ARGS__)
>  #else
>  #define DPRINTF(fmt, ...)
>  #endif

Ditto.


> +++ b/hw/usb/hcd-musb.c
> @@ -253,8 +253,8 @@
>  /* #define MUSB_DEBUG */
>  
>  #ifdef MUSB_DEBUG
> -#define TRACE(fmt,...) fprintf(stderr, "address@hidden: " fmt "\n", 
> __FUNCTION__, \
> -                               __LINE__, ##__VA_ARGS__)
> +#define TRACE(fmt, ...) fprintf(stderr, "address@hidden: " fmt "\n", 
> __func__, \
> +                                __LINE__, ##__VA_ARGS__)
>  #else
>  #define TRACE(...)
>  #endif

and again

My comments were either about things for separate patches, or things
that are trivial if you choose to touch them up, so:

Reviewed-by: Eric Blake <address@hidden>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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