hwrng/xgene-rng: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Matt Mackall <mpm@selenic.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: linux-crypto@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
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@ -100,9 +100,9 @@ struct xgene_rng_dev {
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struct clk *clk;
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};
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static void xgene_rng_expired_timer(unsigned long arg)
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static void xgene_rng_expired_timer(struct timer_list *t)
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{
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struct xgene_rng_dev *ctx = (struct xgene_rng_dev *) arg;
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struct xgene_rng_dev *ctx = from_timer(ctx, t, failure_timer);
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/* Clear failure counter as timer expired */
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disable_irq(ctx->irq);
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@ -113,8 +113,6 @@ static void xgene_rng_expired_timer(unsigned long arg)
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static void xgene_rng_start_timer(struct xgene_rng_dev *ctx)
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{
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ctx->failure_timer.data = (unsigned long) ctx;
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ctx->failure_timer.function = xgene_rng_expired_timer;
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ctx->failure_timer.expires = jiffies + 120 * HZ;
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add_timer(&ctx->failure_timer);
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}
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@ -292,7 +290,7 @@ static int xgene_rng_init(struct hwrng *rng)
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struct xgene_rng_dev *ctx = (struct xgene_rng_dev *) rng->priv;
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ctx->failure_cnt = 0;
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init_timer(&ctx->failure_timer);
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timer_setup(&ctx->failure_timer, xgene_rng_expired_timer, 0);
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ctx->revision = readl(ctx->csr_base + RNG_EIP_REV);
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