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Subject: Re: [PATCH -fixes v2] riscv: Fix fully ordered LR/SC xchg[8|16]()
 implementations
From: patchwork-bot+linux-riscv@kernel.org
Message-Id: 
 <171710343068.6624.13466290859953012929.git-patchwork-notify@kernel.org>
Date: Thu, 30 May 2024 21:10:30 +0000
References: <20240530145546.394248-1-alexghiti@rivosinc.com>
In-Reply-To: <20240530145546.394248-1-alexghiti@rivosinc.com>
To: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: linux-riscv@lists.infradead.org, paul.walmsley@sifive.com,
 palmer@dabbelt.com, aou@eecs.berkeley.edu, leobras@redhat.com,
 linux-kernel@vger.kernel.org, parri.andrea@gmail.com

Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer@rivosinc.com>:

On Thu, 30 May 2024 16:55:46 +0200 you wrote:
> The fully ordered versions of xchg[8|16]() using LR/SC lack the
> necessary memory barriers to guarantee the order.
> 
> Fix this by matching what is already implemented in the fully ordered
> versions of cmpxchg() using LR/SC.
> 
> Suggested-by: Andrea Parri <parri.andrea@gmail.com>
> Reported-by: Andrea Parri <parri.andrea@gmail.com>
> Closes: https://lore.kernel.org/linux-riscv/ZlYbupL5XgzgA0MX@andrea/T/#u
> Fixes: a8ed2b7a2c13 ("riscv/cmpxchg: Implement xchg for variables of size 1 and 2")
> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
> 
> [...]

Here is the summary with links:
  - [-fixes,v2] riscv: Fix fully ordered LR/SC xchg[8|16]() implementations
    https://git.kernel.org/riscv/c/1d84afaf0252

You are awesome, thank you!
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