From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH v3 11/29] eal: generic implementation for I/O
	device read/write access
Date: Sun, 15 Jan 2017 22:29:42 +0100
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Cc: dev@dpdk.org, konstantin.ananyev@intel.com, bruce.richardson@intel.com,
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To: Jerin Jacob <jerin.jacob@caviumnetworks.com>
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2017-01-12 14:47, Jerin Jacob:
> +#define rte_read8_relaxed(addr) \
> +	({ uint8_t __v = *(const volatile uint8_t *)addr; __v; })

Why do you prefer a macro over an inline function?
It won't provide the same "debuggability".