Re: [PATCH] dcache: use QSTR() instead of QSTR_INIT()

[Al Viro <viro@zeniv.linux.org.uk>]

On Wed, Apr 22, 2026 at 02:33:46PM +0200, Thorsten Blum wrote:
> Drop the hard-coded length arguments and use the simpler QSTR().

... which is not a constant expression.  NAK.

QSTR_INIT() is an initializer list for struct qstr; QSTR() is a
compound literal for the same.  IOW, its value is an anonymous
local variable with given contents.

C grammar allows both
	struct foo x = {.bar = y};
and
	struct foo x = (struct foo){.bar = y};
for auto variables, and compiler is able to figure out that they
are equivalent.  But the second form is not legal for the static-duration
variables.