linux-kernel - Re: [PATCH] SPARC: Fix parport_pc support for 32-bit platforms

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Message-ID: <alpine.DEB.2.21.2306190043160.14084@angie.orcam.me.uk>
Date:   Mon, 19 Jun 2023 00:45:20 +0100 (BST)
From:   "Maciej W. Rozycki" <macro@...am.me.uk>
To:     Randy Dunlap <rdunlap@...radead.org>
cc:     "David S. Miller" <davem@...emloft.net>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Sam Ravnborg <sam@...nborg.org>, sparclinux@...r.kernel.org,
        linux-parport@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] SPARC: Fix parport_pc support for 32-bit platforms

On Sun, 18 Jun 2023, Randy Dunlap wrote:

> There is one new warning that should be fixed as well:
> 
> <stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
> In file included from ../include/linux/spinlock.h:88,
>                  from ../include/linux/kref.h:16,
>                  from ../include/linux/mm_types.h:8,
>                  from ../include/linux/buildid.h:5,
>                  from ../include/linux/module.h:14,
>                  from ../drivers/parport/parport_pc.c:46:
> ../arch/sparc/include/asm/parport.h:27:24: warning: 'dma_spin_lock' defined but not used [-Wunused-variable]
>    27 | static DEFINE_SPINLOCK(dma_spin_lock);
>       |                        ^~~~~~~~~~~~~
> ../include/linux/spinlock_types.h:43:44: note: in definition of macro 'DEFINE_SPINLOCK'
>    43 | #define DEFINE_SPINLOCK(x)      spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
>       |                                            ^

 Ah, that's because `sparc32_defconfig' doesn't have CONFIG_WERROR enabled 
and I didn't double-check.  Thanks for your input.  I'll send v2 shortly.

  Maciej