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Date: Mon, 24 Jan 2022 09:02:49 +0900 From: Kuniyuki Iwashima <kuniyu@...zon.co.jp> To: <shorne@...il.com> CC: <benh@...zon.com>, <jonas@...thpole.se>, <kuni1840@...il.com>, <kuniyu@...zon.co.jp>, <linux-kernel@...r.kernel.org>, <openrisc@...ts.librecores.org>, <stefan.kristiansson@...nalahti.fi> Subject: Re: [PATCH] openrisc/boot: Remove unnecessary initialisation in memcpy(). From: Stafford Horne <shorne@...il.com> Date: Mon, 24 Jan 2022 08:27:54 +0900 > On Sun, Jan 23, 2022 at 11:01:00AM +0900, Kuniyuki Iwashima wrote: > > 'd' and 's' are initialised later with 'dest_w' and 'src_w', so we need not > > initialise them before that. > > > > Signed-off-by: Kuniyuki Iwashima <kuniyu@...zon.co.jp> > > This looks fine to me. I will queue this for the next release. Thank you. > > Just curious why are you working on OpenRISC? While reading memcpy() variants, I found a nit to fix in x86 boot-time memcpy() [0]. While I'm at it, I just started reading all arch ones ;) [0]: https://lore.kernel.org/lkml/20220123015807.45005-1-kuniyu@amazon.co.jp/ > > -Stafford > > > --- > > arch/openrisc/lib/memcpy.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/arch/openrisc/lib/memcpy.c b/arch/openrisc/lib/memcpy.c > > index fe2177628..e2af9b510 100644 > > --- a/arch/openrisc/lib/memcpy.c > > +++ b/arch/openrisc/lib/memcpy.c > > @@ -101,7 +101,7 @@ void *memcpy(void *dest, __const void *src, __kernel_size_t n) > > */ > > void *memcpy(void *dest, __const void *src, __kernel_size_t n) > > { > > - unsigned char *d = (unsigned char *)dest, *s = (unsigned char *)src; > > + unsigned char *d, *s; > > uint32_t *dest_w = (uint32_t *)dest, *src_w = (uint32_t *)src; > > > > /* If both source and dest are word aligned copy words */ > > -- > > 2.30.2
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