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From: Andrew Jones <ajones@ventanamicro.com>
To: Conor Dooley <conor.dooley@microchip.com>
Cc: palmer@dabbelt.com, conor@kernel.org,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Heiko Stuebner <heiko.stuebner@vrull.eu>,
	Evan Green <evan@rivosinc.com>,
	Sunil V L <sunilvl@ventanamicro.com>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 3/9] RISC-V: shunt isa_ext_arr to cpufeature.c
Date: Mon, 26 Jun 2023 17:44:18 +0200	[thread overview]
Message-ID: <20230626-2b8f42ace039368c8e917393@orel> (raw)
In-Reply-To: <20230626-79b06f642aa2996098c9353d@orel>

On Mon, Jun 26, 2023 at 05:29:04PM +0200, Andrew Jones wrote:
> On Mon, Jun 26, 2023 at 12:19:41PM +0100, Conor Dooley wrote:
...
> > +const struct riscv_isa_ext_data riscv_isa_ext[] = {
> > +	__RISCV_ISA_EXT_DATA(zicbom, RISCV_ISA_EXT_ZICBOM),
> > +	__RISCV_ISA_EXT_DATA(zicboz, RISCV_ISA_EXT_ZICBOZ),
> > +	__RISCV_ISA_EXT_DATA(zicntr, RISCV_ISA_EXT_ZICNTR),
> > +	__RISCV_ISA_EXT_DATA(zicsr, RISCV_ISA_EXT_ZICSR),
> > +	__RISCV_ISA_EXT_DATA(zifencei, RISCV_ISA_EXT_ZIFENCEI),
> > +	__RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE),
> > +	__RISCV_ISA_EXT_DATA(zihpm, RISCV_ISA_EXT_ZIHPM),
> > +	__RISCV_ISA_EXT_DATA(zba, RISCV_ISA_EXT_ZBA),
> > +	__RISCV_ISA_EXT_DATA(zbb, RISCV_ISA_EXT_ZBB),
> > +	__RISCV_ISA_EXT_DATA(zbs, RISCV_ISA_EXT_ZBS),
> > +	__RISCV_ISA_EXT_DATA(smaia, RISCV_ISA_EXT_SMAIA),
> > +	__RISCV_ISA_EXT_DATA(ssaia, RISCV_ISA_EXT_SSAIA),
> > +	__RISCV_ISA_EXT_DATA(sscofpmf, RISCV_ISA_EXT_SSCOFPMF),
> > +	__RISCV_ISA_EXT_DATA(sstc, RISCV_ISA_EXT_SSTC),
> > +	__RISCV_ISA_EXT_DATA(svinval, RISCV_ISA_EXT_SVINVAL),
> > +	__RISCV_ISA_EXT_DATA(svnapot, RISCV_ISA_EXT_SVNAPOT),
> > +	__RISCV_ISA_EXT_DATA(svpbmt, RISCV_ISA_EXT_SVPBMT),
> > +	__RISCV_ISA_EXT_DATA("", RISCV_ISA_EXT_MAX),
> 
> I think we can either drop this null entry or drop the count variable
> below. My preference would be to drop the count variable, and always
> loop to the null.

Eh, never mind, the entry isn't null, it's "". Why do we have that entry
though? I guess it can be dropped?

Thanks,
drew

  reply	other threads:[~2023-06-26 15:44 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-26 11:19 [PATCH v1 0/9] RISC-V: Probe DT extension support using riscv,isa-extensions & riscv,isa-base Conor Dooley
2023-06-26 11:19 ` [PATCH v1 1/9] RISC-V: don't parse dt/acpi isa string to get rv32/rv64 Conor Dooley
2023-06-26 15:14   ` Andrew Jones
2023-06-26 15:51     ` Conor Dooley
2023-06-26 16:05       ` Andrew Jones
2023-06-26 16:16         ` Conor Dooley
2023-06-27  8:02           ` Sunil V L
2023-06-27  8:51             ` Conor Dooley
2023-06-27  9:20               ` Sunil V L
2023-06-26 11:19 ` [PATCH v1 2/9] RISC-V: drop a needless check in print_isa_ext() Conor Dooley
2023-06-26 15:19   ` Andrew Jones
2023-06-26 16:08     ` Conor Dooley
2023-06-26 16:29       ` Andrew Jones
2023-06-26 11:19 ` [PATCH v1 3/9] RISC-V: shunt isa_ext_arr to cpufeature.c Conor Dooley
2023-06-26 15:29   ` Andrew Jones
2023-06-26 15:44     ` Andrew Jones [this message]
2023-06-26 15:59       ` Conor Dooley
2023-06-26 11:19 ` [PATCH v1 4/9] RISC-V: repurpose riscv_isa_ext array in riscv_fill_hwcap() Conor Dooley
2023-06-26 15:33   ` Andrew Jones
2023-06-26 11:19 ` [PATCH v1 5/9] RISC-V: add missing single letter extension definitions Conor Dooley
2023-06-26 15:34   ` Andrew Jones
2023-06-26 11:19 ` [PATCH v1 6/9] RISC-V: add single letter extensions to riscv_isa_ext Conor Dooley
2023-06-26 15:42   ` Andrew Jones
2023-06-28 17:33   ` Evan Green
2023-06-28 17:43     ` Conor Dooley
2023-06-28 17:50       ` Evan Green
2023-06-26 11:19 ` [PATCH v1 7/9] RISC-V: split riscv_fill_hwcap() in 3 Conor Dooley
2023-06-26 16:17   ` Andrew Jones
2023-06-27 17:42     ` Conor Dooley
2023-06-26 11:19 ` [PATCH v1 8/9] RISC-V: enable extension detection from new properties Conor Dooley
2023-06-26 16:24   ` Andrew Jones
2023-06-26 11:19 ` [PATCH v1 9/9] RISC-V: try new extension properties in of_early_processor_hartid() Conor Dooley
2023-06-26 16:25   ` Andrew Jones

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